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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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Sharmeen Obaid Chinoy, who won the 2016 Oscar for Best Documentary Short, explains why she feels it’s her duty to focus on topics others shy away from … like honor killings.

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In 2012, the Moroccan Ministry of Culture asked architect Aziza Chaouni to rehabilitate the ancient al-Qarawiyyin Library in Fez. She describes the challenges inherent in undertaking a daunting, historic project.

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Aziz Abu Sarah explains how he recovered from the murder of his brother and learned how peace and love can be potent tools of activism.

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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.

Illustration by Maya Sariahmed/TED.

Paleo-oncologist Katie Hunt has a personal connection to an exciting new field of archaeology.

Photo: Daniel Berehulak/Getty Images.

Catharine Young describes a visit to Liberia, where Ebola may be contained but the public health story has only just begun.