The image shows
a small rodent, commonly known as a hamster or gerbil, inside what appears to be a purple knitted object that could be an item of clothing like a glove or sock. The animal is wearing the garment, and it looks amusing and cute due to the unusual context for such
a small creature. There are no rats in this picture; the animal depicted is a rodent from the family Cricetidae which includes hamsters and gerbils.
