This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American A few years ago, things looked pretty grim ...

American bullfrog DNA has turned up not far from the only known habitat of Pithecopus rusticus — a small, critically endangered tree frog that lives in Brazil. These neon green, orange and black frogs ...

Female American green tree frogs use their inflated lungs to dampen the mating calls of other species so they can pick out the ones from males they may mate with. Male frogs use mating calls, ranging ...