| No |
✅✅ - Grasped and Carried Away |
No |
Not Synchronised Video. Pile of seeds in the middle of the scene. An ant walks across the pile at 0:08. Two different ants walk near the scene at 0:37 and 0:41 respectively. At 0:39, an ant walks into the scene, senses and pinches a Nyjer seed without moving it. At 0:44, one ant interacts with the other ant from 0:39 but does not sense any seed. At 0:45, a new ant senses and pinches a grass seed then walks away without grasping. At 0:53, a new ant senses a Nyjer seed, and pinches and manipulates the seed with its forelegs then picks it up and carries it away, also cleaning its antennae with the object held in the mandibles. At the end of this video, a separate ant walks across the pile of seeds sensing it with its antennae. |
Nyjer |
Yes |
7 |
2024/07/25 16:30 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. Multiple seeds in view. An ant crawls across the pile of seeds at 0:07. Another senses the seeds at 0:37. At 1:18 ant enters the scene and senses a seed before manipulating it using mandibles and forelimbs. It drags the seed out of view of the camera without lifting the seed up. |
Nyjer |
Yes |
6 |
2024/07/25 16:30 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. At 0:33 an ant moves into view, then senses and manipulates the large flat seed for an extended duration, partially out of view of one of the video feeds. The ant uses its mandibles and pinches around the edge of the seed. Video continues for 2 minutes but section of interest is 0:33 to 1:12. At 0:42, another ant enters the scene but does not interact with any seeds. Another ant moves through the scene starting at 1:38, without interacting with any objects.
Another ant arrives and senses a lump of Bhatkar mix at 2:45 and there are no visible ants after this time stamp. |
Large Seed |
Yes |
8 |
2024/07/25 16:30 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. Ant walks into scene and quickly manipulates the seed and attempts grasps but leaves without the seed. |
Grass Seed |
Yes |
3 |
2024/07/25 15:09 (GMT+1) |
| No |
❌ - Sensed - Not Manipulated |
No |
Not Synchronised Video. Multiple seeds in the video, ant walks through the scene and sensed the seeds using antennae then walks off without attempting a grasp. Extended sensing of mustard seed. |
Mustard Seed |
Yes |
14 |
2024/07/25 15:09 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. Pile of seeds, multiple ants walk around the seeds. Some briefly sense the grass seed. After 1:25 a pollen lump is moved into view. One large ant enters the scene and makes rapid antennal contacts with another ant. This larger ant then moves and senses the lump before dragging the object out of frame, but then grasps the object using the mandibles and carries away while out of frame. |
Pollen Lump |
Yes |
20 |
2024/07/25 15:28 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. At 0:12, an ant moves through the view of the camera. At 0:17, a different ant walks through the scene without interacting, carrying a mustard seed in its mandibles. At 0:24, an ant senses the Nyjer seed but does not manipulate it. An ant walks through at 1:32 and senses the seed without manipulating or making leg contact. At 2:51, an ant walks up to the nyjer seed while tapping its antennae on the ground. This ant uses its antennae to probe the seed, and manipulates the seed with its forelegs while pinching with its mandibles. It crawls over the pile of seeds but does not pinch or manipulate any other objects. This ant cleans its antennae then walks out of the scene. |
Nyjer |
Yes |
21 |
2024/07/25 15:28 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
No |
Not Synchronised Video. Consider this video after 1:24 due to disturbance of the camera and interference with seed pile before this. The first, smaller, ant moves to the centre of the pile, senses a dandelion seed and opens its mandibles but makes no grasp attempt. At 1:28, a larger ant senses the oat seeds in the pile without manipulating them. At 1:32, another large ant walks over the seed pile with mandibles wide open and moves the seeds then walks away. At 1:37, an ant walks into view of the camera, senses the pile of seeds and walks away. At 1:41, an ant senses the ground before making antennal contact with a nyjer seed. It holds the seed with its forelegs and makes contact with the antennae then pinches the seed with its mandibles. The forelegs remain in contact with the seed even as the seed is held off the ground. By 1:46, the ant has carried the nyjer seed out of view. |
Nyjer |
Yes |
23 |
2024/07/25 15:28 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. At 1:15, an ant walks towards the oat seed and senses it using its antennae, making brief contact with its forelegs, then using those forelegs to manipulate the seed and rotate it while it taps the mandibles along the surface in a partially opened pose, almost vibrating the mandibles against the surface of the seed. The forelegs appear to be pulling the seed towards the ant head, and the left midleg also makes contact with the seed. The ant makes multiple pinching attempts on the object. This ant walks away and over the oat seed without attempting to grasp it. |
Oat |
Yes |
25 |
2024/07/25 15:28 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. At 1:26, an ant walks up to the pile of seeds, first contacting a dandelion seed with its antennae then probing a lump of pollen. This ant touches the lump of pollen with its mandible tips and forelegs, manipulating the object, and using the forelegs to pull the lump towards the ants body. The ant does this without pinching the pollen lump with its mandibles. The ant then moves to a large flat seed. The ant stands on the seed with its forelegs, the left and right midlegs are stood on the pollen lump and an oat seed respectively. The ant follows the thin edge of the flat seed using its mandibles and manipulating that seed with its forelegs. Then the ant moves to sense an oat, and a mustard seed, walking over the two before walking away. |
Dandelion seed, Large Seed, Pollen Lump |
Yes |
26 |
2024/07/25 15:28 (GMT+1) |
| No |
✅ - Grasped + Dropped |
No |
Not Synchronised Video. At 0:02, an ant senses a pollen lump making localised frequent taps with the antennae. The ant moves to pinch the object with its mandibles and uses its forelegs to pull the pollen lump towards its body. The mandibles appear to be vibrating against the pollen lump in between the inner edges of the mandibles. The ant makes multiple pinching attempts on this pollen lump but does not grasp it. The ant then moves to sense a dandelion seed with its antennae, and uses its legs to pull a different dandelion seed away from the first. The ant rotates the seed and its body so the two are more aligned and rotates its head to fit the mandibles around the dandelion seed. The ant lifts this dandelion seed with it held in the mandibles but does not carry the seed away, and continues pinching up the length of the seed. The ant moves on to sense an oat seed, manipulating it briefly, then crawls over and touches the open mandibles to a mustard seed but walks off without grasping. |
Dandelion seed, Large Seed, Mustard Seed, Pollen Lump |
Yes |
28 |
2024/07/25 15:28 (GMT+1) |
| No |
✅ - Grasped + Dropped |
No |
Not Synchronised Video. At 0:36, the ant walks up to a pollen lump and taps it with tho antennae and touches the lump with its forelegs in multiple locations, then the ant moves onto a dandelion seed that it pulls using the forelegs, and grips using the mandibles, to then pick up the seed. Using its forelegs to hold the seed while it readjusts the grip the mandibles, the ant moves the mandibles up towards the widest end of the seed. The ant then continues moving the mandibles along the seed surface, back down to the smaller tip. The ant puts the dandelion seed down, and senses the pile of seeds in a wide range with the antennae and walks away without manipulating any other seeds. |
Dandelion seed |
Yes |
29 |
2024/07/25 15:28 (GMT+1) |
| No |
✅ - Grasped + Dropped |
No |
Not Synchronised Video. At 0:05, a large ant enters the scene, tapping over the pile of seeds in a wide range with the tips of the antennae. The ant walks around the pile of seeds, until it reaches a dandelion seed. At this point, the search becomes more localised over a small area around the seed. The ant makes contact with the antennae on the dandelion seed then uses its forelegs to pull and manipulate the seed. The ant pinches with the mandibles and lifts the seed off the ground while the forelegs remain in contact with the seed. The mandible pinch releases and the and continues to pinch the dandelion seed in other locations, continuing to contact the seed with rapid tapping movements the whole time. The ant walks away without the seed. The ant also performs some grooming behaviour out of view of the cameras. |
Dandelion seed |
Yes |
30 |
2024/07/25 15:28 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. At 0:28, an ant walks to the pile of seeds and immediately senses then interacts with a pollen lump. The ant manipulates the seeds using its forelegs ant taps using the antennae around the pollen lump. The ant touches the pollen lump with its mandibles and continues to use the forelegs to pull the pollen lump away from the pile of seeds. Without picking up the seed, it takes the pollen lump out of view of the cameras. |
Pollen Lump |
Yes |
31 |
2024/07/25 15:28 (GMT+1) |
| No |
✅ - Grasped + Dropped |
No |
Not Synchronised Video. At the start of the video an ant walks into view, sensing the ground but makes only antennal contact with any seeds. The researcher then adjusts the pile of seeds using tweezers. More seeds are added to the pile then at 1:02 an ant walks into view, senses a dandelion seed using its antennae. The ant then moves on to sensing an oat and manipulating it with its forelegs. The ant goes back to the first dandelion seed and picks it up using its mandibles, while also securing the seed with its forelegs. The dandelion seed is put down and the ant cleans its antennae before walking away. |
Dandelion seed |
Yes |
32 |
2024/07/25 15:28 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
No |
Not Synchronised Video. From the start of the video, there is an ant sensing and walking over the pile of seeds. At 0:15 another ant senses a dandelion seed with its antennae then walks away without manipulating anything. At 0:22, that same ant walks back through the outer edge of the scene walking over some dandelion seeds. At 0:31, an ant walks up to a dandelion seed and senses it with the antennae then senses a large flat seed with the antennae, and walking over a dandelion seed. This ant manipulates the dandelion seed using its forelegs and rotates the seed to align it with the mandibles. This ant touches the seed with its mandibles but does not grip the seed. It walks to another dandelion seed that it senses with the antennae and in a short period of time, manipulates with the forelegs, pinches with the mandibles multiple times. This ant also appears to use the right midleg to manipulate or hold this seed. The ant searches around the seed in this manner for a number of seconds until it grips the seed using its mandibles, cleans the antennae then walks out of view. |
Dandelion seed |
Yes |
35 |
2024/07/25 15:28 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. At 0:17, an ant walks over the pile of seeds. At 0:18, a smaller ant approaches a mustard seed and senses it using the antennae, sensing other seeds in the pile. The range of antennal movement becomes a lot smaller as it senses a dandelion seed and moves the mandibles to the antennae tips. Then the ant uses its legs to manipulate the seed, rotating the seed along its axis as it pulls the seed towards its body. The ant grips multiple times along the seed surface then picks the seed up in its mandibles, curving the abdomen close to the ground as it does. The ant regrasps and continues to manipulate the seed out of frame, but does not grip this seed at any future point. This ant walks back to the seed pile and touches different seeds with the antennae in a wide search area. The ant finds another dandelion seed and approaches it with widening mandibles, but does not pinch it. The ant cleans its right antenna, senses another seed, cleans its left antenna, then walks away. |
Dandelion seed |
Yes |
37 |
2024/07/25 15:28 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
The First ant walks into frame and senses the nyjer seed using the antennae and forelegs and attempts to grasp the object. The ant searches repetitively along the length of the seed. Another ant walks in and senses and manipulates a dandelion seed that is out of focus. The ant sensing the nyjer seed walks away and another ant quickly senses the seed with its antennae the walks away. Other ants walk over the nyjer seed without attempting to manipulate it while the dandelion seed is manipulated in the background. |
Dandelion seed, Nyjer |
Yes |
0 |
2024/08/09 12:40 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
The ant interacting with the nyjer seed senses using its antennae and manipulates the seed using its fore, and mid legs. Other ants walk through and interact with the seed by sensing it using antennae then walking away. The ant makes multiple pinches on the nyjer seed with the mandibles, and in the background, a dandelion seed is manipulated and removed however this interaction is not in focus of the cameras. There are multiple ants sensing and manipulating the nyjer seed simultaneously. An ant walks through the scene carrying another seed, interacts with the ant sensing the nyjer seed then leaves, then returns a number of seconds later and re-grasps this other seed in the centre of the field of focus of this video. The nyjer seed is not taken away, but is sensed and manipulated once more at 2:46. |
Dandelion seed, Nyjer, Oat |
Yes |
1 |
2024/08/09 12:40 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Researcher moves seed to the centre frame. At 0:30, ant approaches the seed and senses it using the antennae and forelegs. The ant scans along the seed and senses using its mandibles, the ant also manipulates the seed using its forelegs. Another ant approaches the seed and senses it at the same time but moves away and senses another seed in the scene instead. The ant initially sensing the seed moves to eat a substance on the ground of the arena. Another ant approaches and the two ants touch antennae, and the first ant then exhibits cleaning behaviours, moving the forelegs along the antennae. This ant then returns to sense the nyjer seed and make some grasp attempts while lifting the seed using its forelegs. Another ant joins to sense and manipulate the seed but walks away without grasping. The ant remaining on the seed makes several grasp attempts, moving away at approximately 2:00. The full video contains multiple ants sensing and attempting to grasp two different seeds in the camera views, but no ants successfully grasp or lift either seed. 2:44 to 3:02, and 3:27 to 3:44 show good examples of the scanning behaviour that occurs when an ant is searching for a grasp. |
Nyjer, Oat |
Yes |
2 |
2024/08/09 12:40 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
Yes |
Exclude from analysis. Video starts with ant manipulating seed that is not Nyjer. An ant shows cleaning behaviour and wipes the antennae with its forelegs. This ant moves to interact with the seed, and interacts with an ant that approaches by making antennal contact with the other ant before sensing the nyjer seed. The ant senses the seed using its antennae and manipulates the seed using its forelegs while it scans along the length of the seed. In this video, the change to a gasping behaviour is preceded by an interaction with tweezers held by the researcher and is a less natural transition. |
Nyjer |
Yes |
3 |
2024/08/09 12:40 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Removed as fingerprint is visible in video. Starts from 0:54. Ant makes contact with the seed with its antennae and changes from a wide range of movement with the antennae to a more localised range. The ant moves to hold the seed with its forelegs and touches the seed with its mandibles. The ant moves the seed and aligns it more with the orientation of its head. The ant moves the mandibles up the edge of the seed making repeated pinching motions. It releases the seed and approaches it from another direction, making mandible contact quickly. The ant pulls and manipulates the seed using its midlegs and forelegs. The ant then walks away from the seed and cleans both antennae. At 1:13, a different ant approaches the grass seed and senses and walks over it but does not manipulate it. Good Focus. |
Grass Seed |
Yes |
4 |
2024/08/09 12:40 (GMT+1) |
| No |
❌ - Sensed - Not Manipulated |
Yes |
Senses object, does not pick up |
Grass Seed |
No |
5 |
2024/08/09 12:40 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Two ants simultaneously interact with the seed, using antennae and forelegs to manipulate the object, and using the mandibles to pinch. At 0:18, the object is lifted off the floor between the two ants but then lowered to the ground again as one ant walks away. A third ant senses and manipulates the object then exhibits cleaning behaviour at 0:35. Another ant senses the object but no ants carry the object away. |
Nyjer |
Yes |
7 |
2024/08/09 12:40 (GMT+1) |
| No |
❌ - Sensed - Not Manipulated |
Yes |
A single ant interacts with the nyjer seed but does not appear to make any grasp attempt. |
Nyjer |
Yes |
8 |
2024/08/09 12:40 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Researcher places the seed in view. The first ant senses and manipulates the seed, making some grasp attempts with the mandibles and moves the object around on the ground. The ant stops to clean its antennae then interacts with other ants before walking away. |
Nyjer |
Yes |
9 |
2024/08/09 12:40 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Ant senses object and manipulates it using the forelegs. The ant makes multiple small pinches using the mandibles and lifts the object using its legs but does not grasp the object using the mandibles then walks away. |
Nyjer |
Yes |
11 |
2024/08/09 12:40 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Researcher initially moves the seed then an ant approaches the seed and senses it briefly using antennae. The seed is adjusted again using tweezers by the researcher. Another ant approaches the seed and manipulates it using its forelegs and makes small pinches using its mandibles along the seed’s length but makes no grasp attempt. Another ant approaches and senses the seed but does not grasp it. |
Nyjer |
Yes |
12 |
2024/08/09 12:40 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
Yes |
Quickly scans up and down the nyjer seed and carries the object away. |
Nyjer |
Yes |
13 |
2024/08/09 12:40 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Three ants all sense the seed using antennae and appear to manipulate the seed, but only one makes pinching movements along the seed using its mandibles. This ant then cleans its antennae then walks away without making a grasp attempt. |
Nyjer |
Yes |
14 |
2024/08/09 12:40 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
The researcher adds a second seed to the scene using tweezers. An ant makes antennal contact with a seed with no further interaction. Another ant walks up to the seeds and senses and manipulates one using its antennae and forelegs but not mandibles, senses the second seed then walks away. Several other ants sense the seeds in passing before the final ant senses and manipulates the seed using forelegs, antennae and mandibles. This ant does not attempt to grasp the seed and walks off. |
Nyjer |
Yes |
15 |
2024/08/09 12:40 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
The researcher is manipulating seeds when the first ant senses the seed, at which point the researcher pulls away. The ant senses the seed, manipulating it slightly before walking away. Another ant senses then walks over the seed, passively manipulating it. The final ant in this clip senses the seed and manipulates it without grasping. |
Nyjer |
Yes |
16 |
2024/08/09 12:40 (GMT+1) |
| No |
❌ - Sensed - Not Manipulated |
Yes |
The researcher manipulates the seed at first and an ant attempts to take the seed directly from the tweezers. This section is excluded from any evaluations. The ant leaves and several others arrive in view and sense the seed without manipulating or grasping. One ant senses the seed and pulls it slightly as a manipulation but does not grasp or pinch the seed. As this manipulation is minor the video is marked as no manipulation. |
Nyjer |
Yes |
17 |
2024/08/09 12:40 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Small ant senses seed ant attempts to pick it up but not fully. |
Dandelion seed |
No |
19 |
2024/08/09 12:40 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
Yes |
starts from 1:04, dandelion seed also present. Ant picks up pollen lump quickly. Dandelion seed picked up after by another ant. |
Dandelion seed, Pollen Lump |
No |
20 |
2024/08/09 12:40 (GMT+1) |
| No |
❌ - Sensed - Not Manipulated |
Yes |
Ant senses round the seed then puts it down |
Large Seed |
No |
21 |
2024/08/09 12:40 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
Yes |
Ant senses round the seed then walks away. The same ant (?) returns and circles round the object, manipulating it with forelimbs as well as mandibles then drags it away. |
Large Seed |
No |
22 |
2024/08/09 12:40 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
Yes |
Ant manipulates the round seed with limb and mandible then finds an extremity, grasps it and carries it away. |
Mustard Seed |
No |
23 |
2024/08/09 12:40 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
Yes |
Ant manipulates the seed using fore and midlimbs before grasping it once retrying then lifting and carrying it away, |
Dandelion seed |
No |
24 |
2024/08/09 12:40 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Multiple ants manipulating the same seed. First ant arrives at 0:33 and senses and manipulates the seed. The second ant interacts with the first ant, then interacts with the object and senses it using mandibles and antenna but does not lift using the mouthparts. A third ant also briefly interacts with the seed. |
Nyjer |
Yes |
1 |
2024/08/09 13:26 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Researcher manipulates the seed using tweezers to move it to the middle of the field of view. An ant manipulates the seed using its forelegs and senses the seed but does not attempt to grasp the seed using mandibles. |
Nyjer |
Yes |
2 |
2024/08/09 13:26 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
Yes |
Video starts at 0:42, ant picks up dandelion seed quickly. Out of focus. |
Dandelion seed |
No |
4 |
2024/08/09 13:26 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
Yes |
Ant picks up dandelion seed and adjusts too. |
Dandelion seed |
No |
5 |
2024/08/09 13:26 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
Yes |
Ant picks up dandelion seed and adjusts too. |
Dandelion seed |
No |
6 |
2024/08/09 13:26 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Ant picks up but start of video is missing |
Dandelion seed |
No |
7 |
2024/08/09 13:26 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
Yes |
First ant senses and manipulates objects and attempts to grasp but walks away. Second ant comes in and uses forelegs and midlegs to hold the object but picks it up in the end and cleans the antenna |
Dandelion seed |
No |
8 |
2024/08/09 13:26 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Ant senses seed and manipulates using forelimbs, antennae and mandibles then walks away without carrying the object. |
Nyjer |
Yes |
1 |
2024/08/09 13:47 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Researcher places seed in frame. The seed is walked over and disturbed by several ants. Two ants sense one of the seeds and manipulate it but do not attempt to grasp the seed. |
Nyjer |
Yes |
3 |
2024/08/09 13:47 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
The first ant to interact with the seed only senses the seed using its antennae. The second ant senses the object with antennae and forelegs and uses its mandibles to scan along the object but does not make any grasp attempt. |
Nyjer |
Yes |
6 |
2024/08/09 13:47 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Poorly focused video, seed starts out of frame of most cameras. Researcher moves the seed more in frame but the seed remains out of focus for some views. At 0:33, an ant senses the seed but does not manipulate, pinch or grasp the object. |
Nyjer |
Yes |
7 |
2024/08/09 13:47 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
At 0:21, an ant walks to the seed, walks over the seed and senses it using the antennae. Another ant walks over the seed at 0:31, but there is no further interaction. |
Nyjer |
Yes |
8 |
2024/08/09 13:47 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Video removed due to fingerprint being visible in video. Video not useful for nyjer analysis. Video begins with an ant already sensing a seed. The and scans along the seed using antennae. forelegs and mandibles but does not attempt to grasp it. Several other ants walk through the scene, some disturbing the seed without stopping to interact with it. The researcher then stops to replace the nyjer seed with a large seed of barley at 0:18. An ant immediately begins to interact with the seed and crawls over it. Other ant approach the barley seed and sense it without using their mandibles to pinch it, but do make sustained contact using their mouthparts without opening the mandibles. |
Corn, Nyjer |
Yes |
9 |
2024/08/09 13:47 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
video includes large seed that different ants explore but do not manipulate. |
Corn |
No |
10 |
2024/08/09 13:47 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Researcher adjusts the seed. Several ants sense the seed using antennae briefly without stopping to manipulate the seed. At 1:28, an ant walks over the seed as it senses it, but does not manipulate the seed actively. |
Nyjer |
Yes |
1 |
2024/08/09 14:02 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Video begins mid-interaction. After the first ant walks away from the seed another ant approaches quickly, it senses the seed with its antennae and holds the seed with its forelegs as it holds the mouthparts close to the seed but makes no attempt to grasp it. Other ants walk into the video but no ant makes contact with the seed. |
Nyjer |
Yes |
3 |
2024/08/09 14:02 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Large flat slippery seed. Ant senses around the edge of the seed continuously for several minutes. It awkwardly drags it away. |
Large Seed |
No |
4 |
2024/08/09 14:02 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Large flat slippery seed. Several ants sense the object but the last ant carries it off. |
Large Seed |
No |
5 |
2024/08/09 14:02 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Large flat slippery seed. Several ants sense the object but the last drags off the object awkwardly. |
Large Seed |
No |
6 |
2024/08/09 14:02 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Large flat slippery seed. A single ant senses the object and rolls it away using forelimbs. |
Large Seed |
No |
7 |
2024/08/09 14:02 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
First ant uses forelimbs to manipulate seed but does not carry it away or grasp it. |
Mustard Seed |
No |
8 |
2024/08/09 14:02 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Multiple ants sense the seed, and one ant manipulates it slightly while sensing but does not grasp. |
Mustard Seed |
No |
10 |
2024/08/09 14:02 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
One ant manipulates it slightly while sensing but does not grasp. It uses forelimbs to pull the seed, and move it. |
Mustard Seed |
No |
12 |
2024/08/09 14:02 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
One ant manipulates it slightly while sensing but does not grasp. It uses forelimbs to pull the seed, and move it. Another ant also senses the seed. |
Mustard Seed |
No |
13 |
2024/08/09 14:02 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
The video begins with the researcher replacing a mustard seed with a nyjer seed using tweezers. An ant walks over the seed and senses it using antennae. Another ant shows this same behaviour at 0:40. The final ant to interact with the seed senses it with its antennae and manipulates the seed using its forelegs while it scans up and down the length of the seed with the mandibles open and tracing along the surface of the seed. It doesn’t appear to make an attempt to grasp the seed before walking away. |
Nyjer |
Yes |
14 |
2024/08/09 14:02 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
An ant walks up to the seed and makes antennal contacts, it climbs over the seed but does not stop to manipulate it. |
Nyjer |
Yes |
16 |
2024/08/09 14:02 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Multiple ants sense the seed, and one ant manipulates it slightly while sensing but does not grasp. |
Mustard Seed |
No |
18 |
2024/08/09 14:02 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
One ant senses the object and manipulates it slightly using forelimbs to find the right orientation then grasps it using mandibles. |
Mustard Seed |
No |
19 |
2024/08/09 14:02 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
One ant senses the seed that is slippy and searches to find a grasp point but then walks away. |
Oat |
No |
20 |
2024/08/09 14:02 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
One ant senses the seed but does not grasp it. |
Oat |
No |
21 |
2024/08/09 14:02 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
One ant senses the seed that is slippy and searches to find a grasp point but then walks away. The ant returns and continues to sense the object but does not grasp it in the end. |
Oat |
No |
22 |
2024/08/09 14:02 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Ants sense the object and around the object but none grasp. |
Oat |
No |
23 |
2024/08/09 14:02 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Two ants manipulate the object and seem to attempt to grasp but none succeed. Both walk away. |
Grass Seed |
No |
1 |
2024/08/09 14:36 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Multiple ants sense the seed but none grasp. |
Grass Seed |
No |
2 |
2024/08/09 14:36 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Two ants actually pick the seed up in this video. The first puts it down after and the second walks away with it. |
Grass Seed |
No |
3 |
2024/08/09 14:36 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
First large ant manipulates the seed but does not pick it up. Another ant senses the seed and the third then manipulates and picks up the grass seed. |
Grass Seed |
No |
4 |
2024/08/09 14:36 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Two seeds are present in the video, multiple ants sense the upper seed and spend extended times sensing the object. An ant temporarily lifts the bottom seed then drops it again. The upper seed is carried off by another ant. |
Grass Seed |
No |
5 |
2024/08/09 14:36 (GMT+1) |
| Yes |
✅ - Grasped + Dropped |
Yes |
Two seeds are present, an ant carries off the left seed but out of focus of camera 0. Another ant also senses the second seed. |
Grass Seed |
No |
6 |
2024/08/09 14:36 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Two seeds are present, upper seed is manipulated but not carried off by an ant, but out of focus of camera 0. The same ant goes to sense and manipulate the second seed. The second seed is grasped and carried off. |
Grass Seed |
No |
7 |
2024/08/09 14:36 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Multiple ants sense the seed but none grasp. |
Grass Seed |
No |
8 |
2024/08/09 14:36 (GMT+1) |
| Yes |
✅ - Grasped + Dropped |
Yes |
Single ant senses the seed, grasps it to lift it slightly but drops it again before walking off. |
Grass Seed |
No |
9 |
2024/08/09 14:36 (GMT+1) |
| Yes |
✅ - Grasped + Dropped |
Yes |
Single ant senses grass seed slightly out of focus of camera 0. It drags it further out of focus and out of frame to pick it up and carry it away, |
Grass Seed |
No |
10 |
2024/08/09 14:36 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
The first ant senses the seed as if to grasp it, moving the mandibles along the seed surface but not encompassing the seed with the mandibles in a grasp. A second ant approaches the seed and senses it and manipulates the seed using its forelegs while making many small pinches along the seed length without executing a grasp. This second ant cleans its antennae before walking away. |
Nyjer |
No |
12 |
2024/08/09 14:36 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Single ant manipulates the seed but does not grasp it. |
Oat |
No |
14 |
2024/08/09 14:36 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
A few ants walk over the seed and one ant senses it but does not manipulate or grasp it. |
Oat |
No |
15 |
2024/08/09 14:36 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Single ant senses seed and the seed moves but the ant does not attempt a grasp. |
Oat |
No |
16 |
2024/08/09 14:36 (GMT+1) |
| Yes |
✅ - Grasped + Dropped |
Yes |
Ant spends a significant length of time manipulating the seed and searching for a grasp location. Some of this time is out of frame of camera 0. Another ant senses a second oat seed. The ant grasps the object and picks it up |
Oat |
No |
18 |
2024/08/09 14:36 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Multiple ants sense a seed but none attempt to pick it up |
Oat |
No |
19 |
2024/08/09 14:36 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Removed as fingerprint is visible in the video. The seed is manipulated by the researcher by hand. The first ant senses object and makes small pinching movements with the mandibles as it manipulates the object using its forelegs and makes contact using the antennae. The mid-legs are also used to manipulate the seed. The ant cleans its antennae and forelegs, and curves the thorax under the body for a moment before walking away. |
Nyjer |
Yes |
1 |
2024/09/05 16:16 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
A single ant interacts with the seed, sensing using the antennae. The ant searches along the seed and traces the mandibles along the seed surface, as it manipulates the seed using its fore and mid legs. The thorax can be seen curling under the body of the ant. The ant leaves without making any grasp attempts. |
Nyjer |
Yes |
2 |
2024/09/05 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Several ants walk through the scene but only one makes antennal contact with the seed, briefly, before walking off. |
Nyjer |
Yes |
3 |
2024/09/05 16:16 (GMT+1) |
| Yes |
❌ - No Contact With Object |
Yes |
Ant walks through, short and not useful. |
Nyjer |
No |
4 |
2024/09/05 16:16 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
A single ant interacts with the seed, sensing and manipulating it using its forelegs but making no grasp attempt before walking away. |
Nyjer |
Yes |
5 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
One ant crawls across the object, but a larger ant arrives at 0:22 and senses and manipulates the seed using forelimbs and mandibles before picking the object up and walking away. |
Nyjer |
Yes |
6 |
2024/09/05 16:16 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Ant walks over the seed and pulls the seed using its fore and midlegs. The ant traces the mandibles along the edge of the seed and senses along the seed with the antennae. The ant does not attempt any grasp and walks away. |
Nyjer |
Yes |
8 |
2024/09/05 16:16 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
The video starts with the ant interacting with the seed. The ant climbs onto the seed while sensing it with the antennae but does not attempt to pinch the seed and the amount of movement caused by manipulation is minimal and foreleg contact may improve stabilisation rather than be useful for active pulling of the seed. |
Nyjer |
Yes |
9 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅ - Grasped + Dropped |
Yes |
The first ant senses an object and manipulates it using its forelegs and mandibles. A second ant senses the object with its antennae and then leaves. The first ant grasps and lifts the object, dragging it away. |
Nyjer |
Yes |
10 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Ant comes into frame at 0:22 and senses and manipulates the object using antenna, forelimbs and mandibles before picking the object up and carrying it away. |
Nyjer |
Yes |
11 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
The first section shows the experimenter rearranging the seed. The first ant senses the object using its antennae and also manipulates the object using its forelimbs. It attempts to grasp the object and then walks away. A larger ant approaches and senses the object using its antennae, then walks away. Another ant senses and manipulates the object without grasping it. The final ant senses and manipulates the object before it picks it up and walks away. It is unclear from the video whether all the ants mentioned in the description are distinct. |
Nyjer |
Yes |
12 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Ant senses the object, and manipulates it using its forelimbs to drag the object under the ants body then grasps the object and levers it out of frame. The ant walks through the frame shortly after with the object in its mandibles. |
Nyjer |
Yes |
13 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
First ant interacts with the object at 0:17. It senses the object using antennae and mouthparts, then manipulates the object using the forelegs. Another ant arrives and senses the object before the first ant walks away. The second ant uses its mandibles and forelegs to manipulate the object, making multiple grasp attempts before lifting and carrying the object away. |
Nyjer |
Yes |
17 |
2024/09/05 16:16 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
The video begins mid-interaction, where an ant is sensing the seed. A larger ant approaches as the first ant leaves and begins to interact with the seed. The ant holds the seed with its forelegs as it uses its antennae to sense the seed but it does not make any grasp attempt. |
Nyjer |
Yes |
18 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
A single ant senses the seed using antennae then manipulates it with the forelimbs and mandibles while searching for a grasp location. By 0:08 it grasps the object and carries the seed away. |
Nyjer |
Yes |
19 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Although there are multiple ants in the scene, only one ant interacts with the seed by quickly sensing then grasping it. The object is out of frame when lifted. Ant carries the seed away. |
Nyjer |
Yes |
20 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Single ant senses a seed using its antennae and mandibles then quickly grasps and drags the object out of frame. |
Nyjer |
Yes |
21 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
First ant moves into the scene and senses the object, also manipulating it with the forelimbs. Another ant arrives shortly after to sense the object simultaneously but does not manipulate it. A third ant senses the object and leaves without manipulating it. A fourth ant arrives and senses the object, and manipulates it using forelegs before it grasps using the mandibles and carries the seed away. |
Nyjer |
Yes |
22 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
The first ant to encounter the seed spends the full duration sensing and manipulating the seed, turning the seed around multiple times before grasping it and dragging then lifting the seed away. |
Nyjer |
Yes |
23 |
2024/09/05 16:16 (GMT+1) |
| Yes |
❌ - No Contact With Object |
Yes |
Single ant walks through the scene, no sensing or grasping. |
Nyjer |
No |
24 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
First ant senses the object using its antennae then walks over the seed as it leaves. The second ant senses the object with the mandibles as well as antennae and forelimbs and makes some grasp attempts, lifting the seed off the ground then lowering the seed again without walking. At 0:33 a larger ant begins interacting with the seed and attempts to grasp it at the same time as the second ant. The larger ant manipulates the seed using its forelegs and grasps the object using the mandibles and lifts the seed off the ground. This larger ant spends a few frames cleaning itself before carrying the seed away. |
Nyjer |
Yes |
26 |
2024/09/05 16:16 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
First ant approaches the seed with mandibles wide open then relaxes as it gets nearer to the seed. This ant uses its forelegs to pull the seed towards the body as the mandibles pinch along the edge of the seed, while the antennae also tap and drag along the seed. The ant also uses its mid-legs to hold or manipulate the seed. It cleans its antennae while standing over the seed then walks away. Multiple other ants enter the frame during the video but no others interact with the seed. |
Nyjer |
Yes |
27 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Multiple ants in scene, the first ant to interact with the seed senses around the seed and cleans its antenna. The second ant comes to sense the seed as if to grasp then the first ant picks up the object, interacts with other ants and cleans its antenna then walks away. |
Nyjer |
Yes |
28 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Multiple ants in scene, smaller ant senses object using its antennae and manipulates object with its fore and mid-legs before picking it up and walking off. Interacts with a larger ant on the way out of frame. |
Nyjer |
Yes |
29 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Single large ant senses the object and manipulates it using the forelegs and the mandibles before carrying away. Another ant walks through the scene. |
Nyjer |
Yes |
30 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Multiple ants in the scene. Multiple ants sense the seed and the second ant rolls the seed away (taking it forcefully from the first ant) |
Mustard Seed |
No |
31 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Multiple ants interacting with seed, but first ant rolls the seed away. |
Mustard Seed |
No |
32 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
First ant quickly senses the seed and rolls it out of the scene. A second ant rolls another existing seed through the scene. Video is longer than necessary. |
Mustard Seed |
No |
33 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Large ant senses round scene for an extended period, and another two ants senses the object while this is happening. The larger ant slowly rolls the seed backwards, but generally rotates the seed with the forelimbs for nearly 2 minutes. The ant continues to manipulate the seed outside of frame then returns to the frame and more smaller ants come and sense the seed. The seed is eventually rolled away. |
Mustard Seed |
No |
34 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Small ant senses the seed then rolls it away. Another ant passes through the scene. |
Mustard Seed |
No |
35 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Small ant senses the seed then rolls it away. Rolls it through the scene for a small duration. |
Mustard Seed |
No |
36 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Small ant senses the seed then rolls it away. Other ants pass through the scene. |
Mustard Seed |
No |
37 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Small ant senses the seed then rolls it away. Rotates and manipulates the seed for a while and attempts to grasp the object but generally does not succeed. Drags the object out of the scene. |
Mustard Seed |
No |
38 |
2024/09/05 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Ant senses the seed briefly but does not grasp it or drag it away. |
Mustard Seed |
No |
39 |
2024/09/05 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Ant senses the seed briefly but does not grasp it or drag it away. |
Mustard Seed |
No |
41 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Ant senses the seed and rolls it away. |
Mustard Seed |
No |
42 |
2024/09/05 16:16 (GMT+1) |
| Yes |
❌ - No Contact With Object |
Yes |
Ant barely touches the seed and walks away. |
Mustard Seed |
No |
43 |
2024/09/05 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Ant senses seed and another walks directly over the seed. Multiple ants sense the seed but none take the seed. |
Mustard Seed |
No |
47 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Ant senses seed and quickly rolls it away. |
Mustard Seed |
No |
48 |
2024/09/05 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Ant senses object but does not grasp. |
Mustard Seed |
No |
49 |
2024/09/05 16:16 (GMT+1) |
| Yes |
❌ - No Contact With Object |
Yes |
Ant senses object but does not grasp. Barely any contact. |
Mustard Seed |
No |
50 |
2024/09/05 16:16 (GMT+1) |
| Yes |
❌ - No Contact With Object |
Yes |
Ants walk through the scene but do not touch the object. |
Mustard Seed |
No |
51 |
2024/09/05 16:16 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Ant senses the object and manipulates it but does not grasp or drag it away. |
Mustard Seed |
No |
52 |
2024/09/05 16:16 (GMT+1) |
| Yes |
❌ - No Contact With Object |
Yes |
Ant walks through scene and does not interact with the object. |
Mustard Seed |
No |
53 |
2024/09/05 16:16 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Ant senses the object and manipulates it but does not grasp or drag it away. Multiple ants walk through the scene and sense the environment. |
Mustard Seed |
No |
54 |
2024/09/05 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Ant briefly touches object. Does not carry it away. |
Mustard Seed |
No |
55 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Ant briefly touches object. Another ant senses the seed then drags it away. |
Mustard Seed |
No |
56 |
2024/09/05 16:16 (GMT+1) |
| Yes |
✅ - Grasped + Dropped |
Yes |
Ant senses, crawls over then bites the shape. It attempts to manipulate it in different body positions. The ant drops the object then continues to search the surface, with the antennae and crawling over, before walking away. |
Wedge - PLA - Dry Cat Food |
Yes |
1 |
2024/09/25 15:57 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Ant enters the frame at approximately 30 seconds in. It senses the object using antennae and making small bites. It does not grasp or pick up the object and walks off. |
Wedge - PLA - Dry Cat Food |
Yes |
3 |
2024/09/25 15:57 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Ant moves into frame at approximately 11 seconds. It senses the object. There is a slight disturbance to one of the cameras and the video shakes. The ant walks off without attempting to pinch or grasp the object. |
Wedge - PLA - Dry Cat Food |
Yes |
6 |
2024/09/25 15:57 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Multiple ants sense the object. Neither ant pinches the object, but both sense using legs and antennae. The level of focus in camera 0 is poor. |
I-Beam - PLA - Dry Cat Food |
Yes |
7 |
2024/09/25 15:57 (GMT+1) |
| Yes |
❌ - No Contact With Object |
Yes |
A single ant enters the scene, senses the ground but leaves without contacting the object. |
I-Beam - PLA - Dry Cat Food |
Yes |
8 |
2024/09/25 15:57 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
A single ant senses the object briefly, climbing onto it. It is unclear whether it attempts to pinch the object with mandibles, but it does not grasp. |
Wedge - PLA - Dry Cat Food |
Yes |
9 |
2024/09/25 15:57 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
Ant senses the ground and then climbs onto and over the object, attempting to pinch it with the mandibles. The object moves from either the weight of the ant or attempted manipulation. The ant stops sensing and cleans the antenna before walking off. |
Wedge - PLA - Dry Cat Food |
Yes |
11 |
2024/09/25 15:57 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
Multiple ants walk through the scene. One crawls on top of the object, sensing and possibly tasting the object using its mouthparts before walking off. Another ant climbs over the object and makes some attempts to pinch the object and even lift while the ant is on top of the object. The ant eventually drags the shape out of the scene. |
Wedge - PLA - Dry Cat Food |
Yes |
12 |
2024/09/25 15:57 (GMT+1) |
| Yes |
☑️ - Manipulated or Pinched - No Grasp |
Yes |
The object is initially pushed by the experimenter using tweezers. An ant then walks in to the frame, and quickly attempts to pinch the shape. The ant climbs over the object making repeated pinching actions on the object. Another ant begins to sense and pinch the object using the mandibles while the first ant walks off. A third ant also climbs over the object. No ant grasps the object. |
I-Beam - PLA - Dry Cat Food |
Yes |
13 |
2024/09/25 15:57 (GMT+1) |
| Yes |
✅ - Grasped + Dropped |
Yes |
The object is initially pushed by the experimenter using tweezers. Ant first enters the scene at approximately 36 seconds. It senses and climbs on the object while making contact with the mandibles, it makes a number of pinching motions while holding the object using the mid-legs. It tries to grasp and manipulate the object while stood on top, then stops to find another grasp location. The ant cleans its antennae then leaves the scene. |
I-Beam - PLA - Dry Cat Food |
Yes |
14 |
2024/09/25 15:57 (GMT+1) |
| Yes |
✅✅ - Grasped and Carried Away |
Yes |
The object is moved in the scene while an ant senses it. A second ant arrives, senses and grasps the object but does not carry it. A third ant senses without pinching while the second ant grasps and drags the object away. |
Wedge - PLA - Wet Cat Food |
Yes |
1 |
2024/09/25 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Two ants sense the object simultaneously. A third arrives and appears to sense the object using its mouthparts. No ant picks up the object or pinches it. |
Wedge - PLA - Wet Cat Food |
Yes |
3 |
2024/09/25 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
One ant slowly approaches the object, and senses it using antennae. It moves so that legs are in contact with the object, and appears to use mouthparts to sense the object, but does not pinch. It does not grasp the object. |
Wedge - PLA - Wet Cat Food |
Yes |
4 |
2024/09/25 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Object is pushed by the researcher at first, then a single ant approaches the object, senses it without pinching then walks away. |
Wedge - PLA - Dry Cat Food |
Yes |
8 |
2024/09/25 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Ant approaches object and senses using the antenna. It climbs over the object and senses it using mouth parts but does not pinch or grasp before walking off. |
Wedge - PLA - Dry Cat Food |
Yes |
11 |
2024/09/25 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
An ant climbs over the object while sensing but the video is short and there is minimal interaction. |
Wedge - PLA - Dry Cat Food |
Yes |
12 |
2024/09/25 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Ant walks up to the object and climbs over it, using antenna and mouthparts to sense. It walks off without pinching or grasping. |
Wedge - PLA - Dry Cat Food |
No |
13 |
2024/09/25 16:16 (GMT+1) |
| Yes |
❌ - No Contact With Object |
Yes |
Ant senses the ground before walking away. |
Wedge - PLA - Dry Cat Food |
Yes |
14 |
2024/09/25 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
An ant climbs over the object while sensing but the video is short and there is minimal interaction. |
Wedge - PLA - Dry Cat Food |
Yes |
15 |
2024/09/25 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Ant approaches object and senses using the antenna. It lifts its forelimbs onto the object and senses it using mouth parts but does not pinch or grasp before walking off. It returns to sense the object more then leaves. |
Wedge - PLA - Dry Cat Food |
No |
16 |
2024/09/25 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Ant approaches object and senses using the antenna. It climbs over the object slowly but does not pinch or grasp before walking off. Another ant briefly makes contact with the object using the antennae. |
Wedge - PLA - Dry Cat Food |
No |
17 |
2024/09/25 16:16 (GMT+1) |
| Yes |
❌ - Sensed - Not Manipulated |
Yes |
Ant very briefly makes contact with the object using the antennae then leaves. |
Wedge - PLA - Dry Cat Food |
Yes |
18 |
2024/09/25 16:16 (GMT+1) |
| Yes |
✅ - Grasped + Dropped |
Yes |
Video starts part way through an interaction. This ant is climbing over the object and sensing with the antennae and mouthparts. It drags the object using a single leg while still standing on the object. It drops the object, re-grasps and drags further. The ant continues to make multiple grasp attempts before walking away without the object. |
Wedge - PLA - Dry Cat Food |
Yes |
19 |
2024/09/25 16:16 (GMT+1) |
| Yes |
✅ - Grasped + Dropped |
Yes |
Ant walks over object while sensing it with antenna and mouthparts. It walks away without pinching or grasping. |
Wedge - PLA - Wet Cat Food |
Yes |
20 |
2024/09/25 16:16 (GMT+1) |
| Yes |
✅ - Grasped + Dropped |
Yes |
Ant walks over object while sensing it with antenna and mouthparts. This ant may use the mandibles to pinch the object but it is not clear. |
Wedge - PLA - Wet Cat Food |
Yes |
21 |
2024/09/25 16:16 (GMT+1) |
| Yes |
✅ - Grasped + Dropped |
Yes |
Long Video. Multiple ants approach, crawl over and sense the object. Many using the mouthparts under the mandibles, perhaps drinking any liquid possible from the object. One of the ants attempts to pinch the ring but it did not successfully grasp the object. Another ant makes sequential attempts to pinch the object around the ring’s circumference. One ant pinches and grasps the ring but does not manage to move the object, it then continues to move around the ring perimeter continuing to make pinching motions around the objects edge then walking away when it encounters another ant. Two more ants making pinching action around the circumference of the shape, following its edge. Eventually one of the ants successfully initiates movement of the object while two other ants are crawling over the object. The ants continue to manipulate the object, but not in the view of all cameras. |
Ring - PLA - Wet Cat Food |
Yes |
25 |
2024/09/25 16:16 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. Ant senses a dandelion seed up and down the object. The ant walks over a large grass seed to reach another dandelion seed and makes an attempt to grasp it, making multiple pinches along the length. It does sense the large grass seed then demonstrates grooming behaviour before walking away. Other ants walk in and out of the scene. |
Dandelion seed |
Yes |
0 |
2024/07/25 16:30 (GMT+1) |
| No |
❌ - Sensed - Not Manipulated |
No |
Not Synchronised Video. A small ant walks into the scene, cleans the forelegs and antenna then senses a dandelion seed up and down but does not grasp. The ant also senses a grass seed and other seeds in the pile but walks away without grasping. |
Dandelion seed |
Yes |
1 |
2024/07/25 16:30 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. At the start of the video, an ant senses a grass seed. The researcher adjusts the pile of seeds using tweezers to move them into centre frame. At 0:28 an ant walks through the scene. At 1:16 an ant manipulates with its forelegs and pinches a Nyjer seed. The ant moves over a grass seed then cleans the forelegs and antennae. The ant then senses a dandelion seed before walking away. |
Nyjer |
Yes |
3 |
2024/07/25 16:30 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. Three ants walk in at 0:39, 1:01 and 1:08 respectively and leave with minimal interaction. The ant of interest enters at 1:10, where it senses and manipulates a Nyjer seed, using its legs and mandibles. That ant also senses a grass seed then walks away. |
Nyjer |
Yes |
4 |
2024/07/25 16:30 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. The ant of interest enters view at 1:19, sensing the ground with the antennae then sensing a Nyjer seed, but this action is not visible in all frames. The ant moves to sense and manipulate a lump of pollen but does not pinch it. It senses a large grass seed, moving the mandibles along its edge and manipulates the seed with its legs briefly. Then the ant grooms its antennae before sensing the grass seed for a short time longer then walks away. |
Nyjer |
Yes |
5 |
2024/07/25 16:30 (GMT+1) |
| No |
☑️ - Manipulated or Pinched - No Grasp |
No |
Not Synchronised Video. One ant in the video, it approaches the seed, senses it using its antennae and manipulates it using its forelegs causing the seed to move. The ant touches its mandibles to the seed but does not pinch. The ant leaves without attempting to grasp. |
Oat |
Yes |
12 |
2024/07/25 15:28 (GMT+1) |
| No |
✅✅ - Grasped and Carried Away |
No |
Not Synchronised Video. At 0:03, a large ant walks into the scene and taps different dandelion seeds with its antennae, then taps a mustard seed. It uses its forelegs to pull at the mustard seed and makes contact with it using the mandibles, while continuing to tap it with the antennae. This ant walks away without grasping, and walks over the pile of seeds to another dandelion seed that it senses using the antennae and touches with the mandible tips but then walks away. When the ant stops sensing the seed, the range of antennal motion widens and it senses the ground. At 0:10, a smaller ant walks to the pile of seeds and senses a large flat seed with its antennae then a dandelion seed. It opens its mandibles and touches them to the seed, pinching, and using the forelegs to manipulate the seed. The ant moves its mandibles up to the wider end of the seed then continues to rotate then manipulate the seed tracing with the mandibles back towards the thinner tip of the seed. The ant falls over while manipulating the object. Then the ant uses its legs to raise the seed and out of view of the camera grips it in the mandibles then carries the seed away. |
Dandelion seed |
Yes |
33 |
2024/07/25 15:28 (GMT+1) |