The tiny coquí frog has become such a symbol of Puerto Rico that locals say "Soy de aquí como el coquí" (I'm as Puerto Rican as a coquí).
The coquí appears on carvings and pottery of the native Taino people, proving their connection to Puerto Rico has links long into the past. Their name comes from the "ko-kee" sound of their mating call and there are 17 different species endemic to the island, with a new one named as recently as 2007. Only the males sing, starting at dusk and lasting until dawn. Bright street-lights stop them singing and several species are under threat as their habitat shrinks.
Their zoological name of Eleutherodactylus ("free toes") reveals these frogs do not have webbed feet, meaning their normal habitat is not the water. They are amphibians that can be found anywhere from treetops and caves to dry lowlands. However, they do have tiny pads on each toe which help them stick to slippery surfaces such as leaves.
Unlike other frogs, they do not lay their eggs in water, although they breed mainly in the wet season. There is no tadpole stage, with a tiny froglet hatching directly from the egg.
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