Giant One-Horned Chameleon

The Meller's chameleon is the largest chameleon not native to Madagascar. They can grow up to two feet long and weigh more than a pound. With their size and the small horn that comes sticks out of their snout, they earned the nick name "giant one-horned chameleon." Like all chameleons, Meller's change colors with their emotions, instead of with their surroundings (like most people think).