Chameleon by Frans Lanting
Jackson's Chameleon by BBMaui, via Flickr
Jackson Chameleon by Brent I had a pair of these back in the 70's, they were a lot of fun!
Minima-Nosy pygmy chameleon
Chameleon in Paris by Diego Molero
Frill-necked Lizard (Chlamydosaurus kingii)
Who will blink first? Our bet is on any opponent of this serious-faced Meller's chameleon! (via Zoo Atlanta)
Jemen-Chamäleon / Veiled Chameleon / Yemen Chameleon (Chamaeleo calyptratus) by Sexecutioner, via Flickr