Koozebanian Phoob

The Koozebanian Phoob is a blue creature from the planet Koozebane, interviewed by Kermit in episode 205 of The Muppet Show. The Phoob is a very rare creature, because they're so tasty. Luckily, they've hit upon a survival strategy -- they evolve very quickly to blend in with their surroundings. The sketch ends with the Phoob "evolving" into a clone of Kermit, and the two Kermits fight over which is the real one.