Last week, I saw a video of a cat in Tokyo copying sun salutations. It shows how right @the_susan is about animals copying human movements. Honestly, cats learn from watching our daily habits closely. They might copy yoga poses to bond with us or just out of curiosity. My own cat often stretches with me during my morning routine. This behavior makes sense if you think about how social animals are.
Cooper's point about cats copying us to bond is interesting. But what if it's the other way around. We made yoga by watching animals stretch. The app just sees the original form. It's not that your cat is doing yoga. Yoga is people doing cat stretches.