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Breath of life: Did animals evolve without oxygen?

Posted on 18 Jan 2017 in Earth Science, Evolution, Journalism

At the bottom of the Mediterranean Sea, just south of Greece, there is a lake. Complete with a delicate shoreline and an inviting deep blue surface, the L’Atalante basin looks almost like a lake on land. But this is an inhospitable place. Image: crimsonwoods_flickr

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Complex life may have had a false start 2.3 billion years ago

Posted on 16 Jan 2017 in Earth Science, Featured, Journalism

It was a sign of things to come. About 2.3 billion years ago, our primitive planet was an oxygen-poor world profoundly different from now – but then it briefly and mysteriously gained an oxygen-rich atmosphere. This so-called Lomagundi Event could have provided a fleeting opportunity for complex, animal-like creatures to evolve billions of years before the ancestors of all animals we know today appeared. Image: maxelman

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The strange reason why hagfish tie themselves into knots

Posted on 9 Sep 2016 in Animal Behaviour, Evolution, Journalism

Hagfish do not actually have bony vertebrae in their backs: they are literally spineless. They have several hearts, and at least twice as much blood in their bodies as other fish. On top of that, they have only half a jaw, yet they can still tear through tough flesh. And they can tie themselves in knots. Image: kinskarije

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Orcas are first non-humans whose evolution is driven by culture

Posted on 31 May 2016 in Animal Behaviour, Evolution, Journalism

You could call it a culture shock. Many researchers accept that cultural experiences have helped shape human evolution – and evidence has now emerged that the same may be true of killer whales. Image: Shawn McCready

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What is the real reason we sleep?

Posted on 18 Mar 2016 in Evolution, Featured, Journalism

There are a few things we literally cannot live without. Oxygen is one. Another is food and water. And then there is sleep: forcibly keep an animal awake for long enough and you will kill it. The same almost certainly applies to humans. Image: bogolyandras

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