It had to do with the big season finally with grey's atomy(sp). Toward's the end of the show they have the snake talking and promoting something. Still game me nightmares.
What I thought was interesting though was near the end of the clip you hear Kimmel say "I told them I don't want live animals on the show" At that point (this was before I read any of your responses) I was slightly peeved. Fine then don't help protect animals and conservation....finding out it was a fake...well...I wanna know does he still not want live animals on his show?