In Nepal’s Upper Mustang, near the southern edge of the Tibetan Plateau, life unfolds in some of the thinnest air on Earth.

On November 24, 1859, Charles Darwin published On the Origin of Species and transformed our understanding of life on Earth by ...

This study explains why helpful DNA changes appear often but rarely spread, because environments shift too fast for evolution ...

Someone once asked me “Is evolution still happening?” My brief answer was “Of course, it’s always happening.” I would have gone on to explain a bit, but the questioner turned and walked away. That ...

New research challenges the long-standing idea that most fixed genetic mutations are neutral. For many years, scientists studying evolution have believed that most genetic changes influencing how ...

Although we humans have changed our environment in many ways during the past few thousand years, we are still changed by evolution. We have not stopped evolving, but we are evolving right now in ...

Stray dogs in Chernobyl reveal genetic changes after decades of radiation, offering unique clues about how life adapts in ...

Vertebrates exhibit extensive variation in relative brain size. It has long been assumed that this variation is the product of ecologically driven natural selection. Yet, despite more than 100 years ...