This is not a big mystery. Cats play for the same reason that dogs and kids do. For some reason cats vary a lot in how they play. But its no mystery why it ofte

This is not a big mystery. Cats play for the same reason that dogs and kids do. For some reason cats vary a lot in how they play. But its no mystery why it often involves chasing something that moves. They are genetically evolved to practice hunting, because they are natural hunters.