Have you ever seen your dog play with another dog? Have you seen squirrels chasing each other in the woods? Are they playing or are they doing something else? We look at the behavior of animals with Marco Wendt, Wildlife Ambassador for the San Diego Zoo Wildlife Alliance and host of Amazing Wildlife: A San Diego Zoo Podcast. Also in this episode: Why do pigs like to play in the mud? Why do elephants like to play in the mud? Why do hamsters like to play? Is it okay for animals to live at the zoo?

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