On the sliding scale of animal versus anthro, Po and Tigress are the two members of the Five with the most “human” characteristics. Still, Tigress is very much an animal — she travels on all fours when she needs to be fast, and sometimes hisses or snarls. In fact, out of the Five, Po is probably the character who exhibits the fewest animal characteristics (although his appetite and slacker personality in general, particularly in the first film, are certainly reminiscent of a real-life panda).
And I totally didn’t just take all that from the art book/Blu Ray extras. Nope.
I love when there’s a mix of anthro and human—or like the anthro characters still retain a lot of animal traits.