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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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Filmmaker Ric Burns describes the turn of events that led to his latest project, a documentary of the prolific author and neurological anthropologist, Oliver Sacks.

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Not a scientist? As David Lang shows, you can still play a meaningful role in solving science’s hardest problems.

Eduardo Sáenz de Cabezón |TED

One mathematician’s spirited answer to bored, frustrated and reluctant math students.

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What’s it like to have a song inside your head, itching to get out? A neuroscientist and a songwriter compare notes from the frontier of music and science.

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A new technology that goes by the ungainly name of CRISPR-Cas9 could change the human genome for generations. Here’s why its inventor is trying to press pause.

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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.