Baby Chamaeleons, Taronga Zoo, Sydney, New South Wales, Australia

• Temperature influences the amount of food eaten.
Parasites
Chameleons are parasitized by nematode worms, including threadworms (Filarioidea). Threadworms can be transmitted by biting insects such as ticks and mosquitoes. Other roundworms are transmitted through food contaminated with roundworm eggs; the larvae burrow through the wall of the intestine into the bloodstream.