Play Play Play

Cat play and toys incorporates predatory games of "play aggression". Cats' behaviors when playing are similar to hunting behaviors. These activities allow kittens and younger cats to grow and acquire cognitive and motor skills, and to socialize with other cats. Cat play behavior can be either solitary (with toys or other objects) or social (with animals and people). They can play with a multitude of toys ranging from strings, to small furry toys resembling what would be prey (e.g. mice), to plastic bags.

*Wikipedia