Benjamin Charlton

The pitch of male koalas’ mating calls is about 20 times lower than it should be. wazuluwazu

Grunt work: unique vocal folds give koalas their low‑pitched voice

The secret to koalas’ distinctive low-pitched vocalisations has been found, according to a [study published today](http://www.cell.com/current-biology/abstract/S0960-9822(13%2901344-4) in the journal Current…

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