Komodo dragon collision between Australia and Southeast Asia allowed these larger varanids to move back into what is now the Indonesian archipelago, extending their range as far east as the island of Timor. The Komodo dragon was believed to have differentiated from its Australian ancestors 4 million years ago. However, recent fossil evidence from Queensland suggests the Komodo dragon actually evolved in Australia before spreading to Indonesia. Dramatic lowering of sea level during the last glacial period uncovered extensive stretches of continental shelf that the Komodo dragon colonised, becoming isolated in their present island range as sea levels rose afterwards. Extinct Pliocene
Mulga dragon Mulga dragon The mulga dragon (Caimanops amphiboluroides) is a species of agamid lizard found in Western Australia. It is the sole member of the genus Caimanops; its name is derived from the crocodile-like shape of the jaw. The species is up to 250 mm long, the length from snout to vent is 95 mm, with a long, slender tail that ends abruptly. The patterning over the legs and body is grey and brownish streaks. This provides an excellent camouflage on mulga trees, its usual habitat, it is also found beneath mulga leaf litter. "Caimanops amphiboluroides" generally remains motionless and unobserved,