[We had a pair of these. Slow-moving with prehensile tails, very cool--and of course there's the whole changing color thing too.] Trioceros jacksonii (common names Jacksons Chameleon or Three-horned Chameleon) - Cool Nature
photographer Mark Bridger took these remarkable images of chameleons, geckos, and frogs. Bridger employed a technique known as macro photography, which uses a powerful lens to get extremely close shots, according to Solent News.