BoyRaisin2 said:
Really? I always thought he was one of the various "monsters." He is kept on some chain-linked leash.
I always thought of the leash as a physical component of his relationship to the band and the normal (for the Muppets anyway) world. It only seemed to come into play in the series when he was doing something particularly extreme and the group had to calm him down. (I'm willing to admit I could be totally off base her)
Other than that, I never even noticed it as anything other than a fashion accessory.
As for the species question, I never thought of Animal as anything other than human. It seemed clearest to me in Family Christmas when he sees Cookie Monster eat the plate of cookies and says "That my kind of fella!"
In that scene, Cookie is clearly a monster and Animal is very human to me.