It is a low, rumbling bellow that seems very incongruous coming from the mouth of a diminutive koala. And now scientists have found that these famously sleepy marsupials have a evolved a vocal organ ...

A male koala’s come-hither routine in mating season involves a call that sounds almost like a bullfrog crossed with a creaky, heavy old door opening: However, when scientists listened closely to the ...

Scientists have figured out how koalas are able to produce a mating call that is so low-pitched it ought to come from a creature the size of an elephant. The vocalizations are made with a previously ...

Add Yahoo as a preferred source to see more of our stories on Google. … male koalas also seek female mating partners outside of these hours. Scientists have also provided several other explanations ...

Male koalas have learned to belt out louder bellows much bigger than an animal of their size. IF YOU’RE A KOALA, hot for some action and want to prove you’re top gum, you’d better start bluffing, ...

If you heard a male koala bellow but did not see him, you might assume that some large, deadly creature was lurking behind the eucalyptus leaves. Half grunt, half chuckle, the koala's mating call, ...