Woman holds a red-eyed treefrog (Agalychnis callidryas) on the palm of her hand in Costa Rica rainforest. This frog is found in the tropical rainforests of central America, where it lives in trees and other vegetation. Each toe ends with a sucker, which is used to grasp leaves and stems. It is primarily nocturnal, and feeds mainly on insects such as moths, flies and grasshoppers. It reaches lengths of around 7 centimetres.