New Weird & Wild: Why Do Koalas Have Such Low Voices?

Koalas are the Barry Whites of the animal kingdom, producing surprisingly low-pitched bellows.Now scientists have discovered the secret behind the Australian animal’s unusually deep voice: a special sound-producing organ not found in any other land mammal.Read the whole story at Nat Geo's Weird & Wild Blog: Why Do Koalas Have Such Low Voices?