A chameleon sits motionless on a tree branch. Suddenly its sticky, two-foot-long tongue snaps out at 13 miles an hour, wrapping around cricket and whipping the yummy snack back into the reptile’s mouth. Now, that’s fast food dining! And the chameleon’s swift eating style is just one of its many features that’ll leave you tongue-tied. Chameleons mostly live in the rainforests and deserts of Africa. The color of their skin helps them blend in with their habitats. Chameleons that hang out in trees are usually green. Those that live in deserts are most often brown. They often change color to warm up or cool down. ( Turning darker helps warm the animals because the dark colors absorb more heat.)