The Dwarf Glass Frog is the smallest Glass Frog to be seen in Costa Rica, roughly similar in size to a Strawberry Poison Dart Frog, but given its green dorsal skin it is more difficult to spot, specially if they stay motionless on a green leaf; increasing the probabilities of seeing one is the fact that they call from the upper side of leafs, so putting enough attention one might discover an individual. Their eyes are more forward facing than the Dusty Glass Frog, which is the other member of the Teratohyla genus and is a lot large, also differentiated by the lack of any spots on the Dwarf. An important reproductive characteristic of this species is that the egg clutches are left hanging from the underside of leafs, above a stream so that tadpoles can easily drop to a certain source of water.

This small individual clang to the leaf using its sticky fingers and toes.
This is the smallest glass frog species that can be found in Costa Rica, with males being a mere 2 centimeters in length. They are called Glass Frogs for a good reason: Part of their ventral skin is transparent, letting us observe their inner organs. The same happens with the limbs, as the bones can be observed through the skin.

Dwarf Glass Frog (Teratohyla spinosa)

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