User blog comment:Lord Loss/Discussion of the Week: Brute Wyverns/@comment-4697976-20130115014833/@comment-4212769-20130117203726

And Black Diablos is black in a sandy-brown environment. Bright Hypnocatrice is pink and lives in the Great Forest. Why should they change their location only because they have a temporary color change? They cannot adapt that fast to any other environment and if they turn back to normal they would be out of place in the new environment.

And Tigrex' color makes sense for the desert it lives primarily in. It only hunts in the Snowy Mountains/Tundra and not everything needs to have camouflage to hunt.