In much of the world, nature sounds like birds or maybe insects — the cheerful, rhythmic cheeps of a robin, say, or the buzz of a cicada. In Puerto Rico, it sounds like frogs. Lots and lots of ...

Bad Bunny’s latest album amplifies the voices of Puerto Rico’s coquí and endangered crested toad, highlighting the urgent need to protect the island’s fragile ecosystems and cultural heritage.

People say it sounds like a “bonk,” according to Tanner, who compares it to a little plunking. Pig frogs live mostly in swamps throughout the southeastern U.S., the Bahamas and Puerto Rico.

Breeding males and some females may have a yellow throat and abdomen. The species is characterized by large truncate discs under the frogs' feet and a peculiar, melodious, low voice completely ...