Fox playing with a dog toy

Probably all animals enjoy playing. I've watched rabbits, as many of us have, play leapfrog and just run, in circles, for the joy of it. Seen crows play a game of keep away with twigs and pick up paper cup and place it in front of mate in some kind of game or offering. Deer play chase and run in circles for sheer joy. Cattle, especially when young,and horses and all critters all make fun and play.