There is no creature more fearsome in the wild than the giant cats. The tiger, the panther, the lion, all justly feared predators who strike with neither warning nor mercy.

These kittens, not so much. But the instincts are still there.

We're not really sure why these adorable kitties are stalking their litter-mates. Amusement? Practice? Revenge? We do know, however, that they're completely adorable little stalking animals.

All cats have that instinct to stalk their prey, and they use play to rehearse the stalking that they're supposed to be using in the wild, which they'll never actually be in, but it never hurts to practice.

Especially when it results in cute YouTube videos.