For most of human history, green eyes didn’t exist. Understanding why they do now means rethinking what we know about ...

A glass of milk can still mark a line through humanity. For most adults, drinking it brings discomfort because the body ...

Oldest Homo fossils: New finds in Ethiopia’s Afar region date to 2.8 million years ago, possibly the earliest known Homo ...

A massive study of ancient and modern DNA from thousands of West Eurasian people has identified nearly 500 genetic variants ...

Denisovans, a mysterious human relative, left behind far more than a handful of fossils—they left genetic fingerprints in modern humans across the globe. Multiple interbreeding events with distinct ...

Some of the smallest organisms might have influenced our own evolutionary path. A new study has found that the distribution of malaria in Africa in the last 70,000 years could hav ...

Why do we kiss? The answer involves ancient apes, immune systems and a neurochemical cocktail in the human brain that few can ...

It’s no secret that life in the 21st century moves at a rapid pace. Human inventions such as the Internet, mobile phones and fiber optic cable have increased the speed of communication, making it ...

A new paper in Molecular Biology and Evolution, published by Oxford University Press, finds that the relatively high rate of Autism-spectrum disorders in humans is likely due to how humans evolved in ...