William Ellis

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Koalas have embraced tree trunks as a handy cooling mechanism during summer. Ross Huggett/Flickr

Tree‑hugging koalas beat the summer heat

Andrew Katsis, The Conversation

Keeping cool during summer can be difficult, but new research published in Biology Letters shows that koalas cope with high temperatures in an unusual way – by hugging trees. Researchers used thermal imaging…
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

Shireen Chan, The Conversation

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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