There's just no denying it, cats are smart. We've seen a variety of different animals react to a treadmill but they always seem the quickest to pick up on how to use it.
Indy, the cat, is at first scared of the machinery (totally understandable) but quickly gets over his fear and soon enough -- masters the treadmill!
Cats may be called "scared cats" often, but they can also be quite fearless.
Way to go, Indy!