LOOK: Google Doodle Unveils Special Earth Day Animals

A one-month-old Veiled Chameleon crawls on the finger of a Taronga Zoo staff member September 19, 2006 in Sydney, Australia. Taronga Zoo's Chameleon breeding programme has for the first time in an Australian zoo produced four youngsters over the past month, with four eggs still to hatch. Chameleons are renowned for their ability to change colour, and their large eyes which can move independently of each other, allowing them to look in two directions at once. (Getty)