Frogs that whistle “like sound effects from Star Trek” have been discovered by scientists. Most people would associate frogs with croaking, but the newly identified animals in Madagascar ...

which some compare to the sound of a pileated woodpecker. The females of this species tend to prefer longer, higher-pitched calls from potential mates. Male bird-voiced tree frogs use a technique ...

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It's a small critter, but it's spawning a national movement. (Sound of frog call) With more than 240 species in Australia, each with a unique call, chief scientist Dr Jodi Rowley has helped ...