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Humans

A controversial book about human diversity shows how biology unites us

From race and IQ to sex and gender, Herman Pontzer's new book Adaptable is an ambitious and enjoyable exploration of how understanding ourselves better can help us bridge divides

By Michael Le Page

26 March 2025

PARIS, FRANCE - AUGUST 08: (EDITORS NOTE: Image was captured using a remote camera) Sydney McLaughlin-Levrone of Team United States crosses the finish line to win the gold medal with new World Record after competing in the Women's 400m Hurdles Final on day thirteen of the Olympic Games Paris 2024 at Stade de France on August 08, 2024 in Paris, France. (Photo by Hannah Peters/Getty Images)

The racial divide in track events is down to factors other than genetics

Hannah Peters/Getty Images

Adaptable
Herman Pontzer (Allen Lane)

Fancy eating the real paleo diet? Rotten meat should be top of your menu, preferably with a generous helping of maggots. Dietary records “from every continent and climate are alive with maggots, worms and the soft, smelly flesh of decaying animals. Many groups preferred rotten meat to fresh,” says evolutionary anthropologist Herman Pontzer. “The more it stank, the better.”

In fact, we seem to have evolved to eat rotten meat. Our stomachs are much more acidic than most other…

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