Cats tend to stalk and pounce, so he's trying to do that as well as play with her. With dogs, they tend to wrestle and jump on top of each other. They're trying to find a happy medium.

I think the dog has learned some cat behavior. And the lion's learned some dog behavior, like wrestling.

We've set up a playground for them. They kind of like to play 'king of the mountain' and take turns running up and down.