As demonstrated by animals such as chameleons, some ambush hunters benefit greatly from the use of camouflage. When you can’t change your skin color, your ability to hide from prey becomes limited. However, if you can change your skin color, you can blend in with your surrounding environment and take your victim by surprise. As you merge with the vegetation, you make the invisible visible and the visible invisible until you and your surroundings become one and the same. Imagine walking through a dense forest and then a giant carnivore materializes out of nowhere and you are suddenly swallowed. Since a number of the reverse engineered dinosaurs in my new book originated from reptiles, I am thinking of giving one of them the ability to change color like a chameleon in order to ambush their prey. Such a thing would give the characters the last scare of their lives.