Chameleon (reptile)
From Tardis Wiki, the free Doctor Who reference
Chameleons were Earth reptiles noted for their eyes and long, sticky tongue. Dodo Chaplet pointed one out to Steven Taylor aboard the Ark. (TV: The Ark)
Evelyn Smythe compared the Galyaris' eyes to that of a chameleon's. (AUDIO: The Sandman)
Miss Quill compared the Lan Kin to a chameleon, because of the way it camouflaged itself and snatched its prey. (TV: Nightvisiting)