Frogs 'Talk' Using Complex Signals

A recent study of a Brazilian torrent frog, Hylodes japi, shows that this species employs a more nuanced communication system than any other known frog species. In fact, researchers found that the tiny H. japi had a sizable repertoire of calls and displays that was more complex than any seen before in anurans, the animal order that includes frogs and toads. Scientists have long recognized that vocal calls are frogs' chief means of communication, but recent studies detail a growing body of eviden