User blog comment:CROAgent/Out of proportion/@comment-11188061-20140713155438/@comment-24994749-20140714035445

The athletically, I assume, is a fan theory that came as extrapolation from some thigns we know:

- SOME faunus might have good night vision. Not all of them, logic would dictate those based of animals with good night vision inherit this trait only.

- Blake's landing strategy was omitted because she would have simply landed on her feet, which is something extremely cat like. When Nora crashes against Blake while retreating from the Death Stalker and sends her flying from the bridge, Blake turns around in mid air similarly to how cats do it to equilibrate. Also, during the Nevermore battle, after the Nevermore destroys the columns they were standing on, you see Weiss use her semblance to propel herself up, Ruby and Yang use recoil... Blake just runs vertically up a pillar.

- During Velvet's battle outfit design contest, Monty said to take into account she is a rabbit faunus and rabbits are very light on their feet.

- Sun moves around doing parkour, much like a monkey would go around jumping from branch to branch of a tree, and his tail is strong enough to hold all of his weight, so it's not there just for show.

With all that, I would say it's safe to assume that faunus have different increased physical capabilities depending on the animal species they take after.