In the video, there are four rats of different colors and sizes. They are gathered around a piece of corn on the cob, which is placed on the floor. The rats are nibbling on the corn, and one of them is holding the corn with its paws. The background shows a red bowl and a blue box. The rats are moving around the corn, and some of them are standing on their hind legs to reach the corn. The video captures the rats' curiosity and their natural behavior of eating.