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This freshly drawn Tree of Life contains a new branch full of microbes — which appear to dominate Earth’s biodiversity. How did we miss that? TED Fellow Hélène Morlon explains.

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Biohacker Andrew Pelling has figured out a way to create living, functional biological objects that don’t exist in nature — without deliberately modifying DNA in any way. In one experiment, he uses apples and human cells to make ears. But what? And how? And why? Read on.

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For Sissel Tolaas, even the liveliest city may be a “blandscape.” Here, the chemist shares thoughts on why, for her, smell is the most important sense.

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Biologist Carin Bondar shares videos and books about animals getting down and dirty.

Where do a zebra’s stripes, a leopard’s spots and our fingers come from? The key was found years ago — by the man who cracked the Enigma code.

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Journalist James Nestor explores the science of the “mammalian dive reflex,” the phenomenon by which water triggers an immediate decrease in heart rate.