The glass frogs are members of the amphibian family Centrolenidae. All frogs are amphibians, and are cold blooded.

Glass frogs are in the Centrolenidae Family, Suborder of Neobatrachia, Anura Order, Amphibia Class, Chordata Phylum, and the Animalia Kingdom.

The predators of the glass frog are snakes, birds, crickets, and opossum. Usually, these predators prey on the eggs of glass frogs. Glass frogs are found in rain forests in South America, Mexico, and Central America. These frogs belong to the amphibian family called Centrolenidae.
snakes, birds and large mammals.

there is about 12 kinds of glass frogs in the world

using their glass mouths.