The human body is a machine whose many parts – from the microscopic details of our cells to our limbs, eyes, liver and brain – have been assembled in fits and starts over the four billion years of our ...

Evidence is mounting that the evolution of our species is more convoluted than we imagined — more like a braided stream than a branching tree. When you purchase through links on our site, we may earn ...

Why do 90% of humans reach with the same hand? The answer stretches back millions of years and involves fossils, language and ...

Over the past 10,000 years, evolution in West Eurasia has been selecting for light skin, red hair and resistance to HIV and ...

Ancient DNA reveals how farming accelerated human evolution, driving genetic changes over the past 10,000 years.

Biologists say the appendix isn’t useless after all. Evolution kept reinventing it, and it may help support gut immunity and microbes.

Humans really do rule the world. We took over fast and far, more than any other wild vertebrates. We inhabit nearly every corner of the world, and can thrive in deserts, tropical rainforests and even ...

(THE CONVERSATION) Most people know only two things about the appendix: You don’t need it – and if it bursts, you need surgery fast. That basic story traces back at least to Charles Darwin, the ...