Pig frogs are named for their low grunting sound, which sounds like a pig’s “oink.” They mostly call to attract female frogs, ...

Deep in the rainforests of Madagascar, scientists have discovered seven new tree frog species that emit noises that ...

An international team of researchers have discovered seven new species of tree frogs that make otherworldly calls in the rainforests of Madagascar. Their strange, high-pitched whistling calls sound ...

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