The video shows a close-up of a group of black ants crawling on a tree trunk. The ants are moving in and out of a small hole in the bark. The tree trunk is brown and rough, with some moss growing on it. The ants are small, with long antennae and six legs. They are constantly moving, and some are carrying small pieces of food. The video is shot in daylight, and the focus is mainly on the ants and the hole they are using as an entrance and exit point.