No sure about the animals but...
It was posted on here about a week ago that casinos are no longer allowed to make LE chips for shows that do not have an extended run at thier property. Since the Hard Rock hosts bands for a few nights, they will not be allowed to make chips like they have in the past. The other big casino this affects is the Palms. So no more cool chips from your favorite bands, but you can settle for a Danny Ganz chip, or Celine Dion oooooohhhhhhhhhhh.