The Indigenous peoples of the Bolivian highlands are survivors. For thousands of years they have lived at altitudes of more than two miles, where oxygen is about 35 percent lower than at sea level.

Evolution is perhaps the most extraordinary story ever told—a tale spanning billions of years that connects every living thing on Earth through an intricate web of shared ancestry. From the tiniest ...

Different beak and jaw shapes are illustrative examples of how animal species have adapted to different food sources. In a ...

In most narratives, the story of evolution is the story of organisms emerging from the ocean and eventually populating the land. But for some species that evolution also involved a return trip. Dozens ...

Hundreds of miles off the coast of Ecuador, in the very place that inspired Charles Darwin’s seminal theory of evolution, a wild-growing species appears to have hit rewind. A small tomato found in the ...

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Why does “bouba” sound round and “kiki” sound spiky? This intuition that ties certain sounds to shapes is oddly reliable all over the world. For at least a century scientists have considered this ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The story of how us humans—and other mammals—got our noses may have ...

A random mutation in a gene can alter its function and bring about a new characteristic that can pass down for many generations, but this may not be the only way that organisms can inherit a trait.

Darwinian thinking has been challenged many times, starting with co-discoverer of natural selection Alfred Russel Wallace, who disagreed with some aspects of Charles Darwin’s arguments, but was ...