Trivia question for Dec-04-2011

Carter had an opportunity to hold one of these hearty reptiles recently and he surprisingly liked it.  Here is trivia for today.  These are the largest lizards in their natural range.  They are very adept at climbing trees and leaping from branch to branch despite its ungraceful physique.

When frightened by a predator, these guys will attempt to flee, and if near a body of water, they dive into it and swim away. If cornered by a threat, they will extend and display the dewlap under its neck, stiffen and puff up its body, hiss, and bob its head at the aggressor. If threat persists they can lash with its tail, bite and use its claws in defense. The wounded are more inclined to fight than uninjured prey.

So here are carter’s questions:  Tell us what this reptile is and where they can be found in the wild?  Also, locals hunt these animals easily by imitating the sounds of what animal?  Finally, if a male loses a fight, tell us what happens to its body color?

Good luck 😉