El Yunque National Forest
The common coqui is a tiny frog native to Puerto Rico that gets its name from a repetitious and unique calling sound (Ko-kee) made by the male of the species from dusk until dawn. A nocturnal predator, these amphibians have padded discs at the end of webless toes allowing them to climb branches and leaves with ease.
Photo: J. Scott Graham
The sender writes:
We actually got to see one of these - a baby one. They sing a pretty sound. We heard them during our hike.