Chameleons are reptiles that are part of the suborder of iguanas. These colorful lizards are known as one of the few animals that can change their skin color. However, it is a misconception that chameleons change color to match their surroundings. In fact, a chameleon's skin changes color in response to its emotions, such as anger or fear, as well as changes in light, temperature, or humidity. 10.5 x 5.5 x 4 centimeters.