Coquí fossil from Puerto Rico takes title of oldest Caribbean frog

The bright chirp of the coquí frog, the national symbol of Puerto Rico, has likely resounded through Caribbean forests for at least 29 million years. A fossil arm bone from a frog in the genus Eleutherodactylus is the oldest record of frogs in the Caribbean and, fittingly, was discovered on the island where coquís are most beloved.