What are the 60 different types of glass tree frogs?

There are over 60 species of glass frogs, primarily found in Central and South America. These frogs are known for their translucent skin, which allows their internal organs to be visible, providing them with their common name. Notable species include the Northern glass frog (Hyalinobatrachium fleischmanni) and the Southern glass frog (Hyalinobatrachium columella). They typically inhabit rainforests and are known for their unique reproductive behaviors, laying eggs on leaves above water.