Humans are the only primates that run nearly naked under the sun. Here’s how this biological tradeoff reshaped how our ...

The human brain is one of the most complex objects in the universe – and that complexity may be due to a surge of hormones released by the placenta during pregnancy. While numerous ideas have been ...

We are indeed still evolving, though it can be hard to tell because it happens over generations and often involves things you can't see, such as what foods different people are able to digest. When ...

Researchers uncover evidence that the gut microbiome and brain connection can influence brain gene expression and neural ...

Michael A. Little does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Humans were isolated in southern Africa for about 100,000 years, which caused them to "fall outside the range of genetic variation" seen in modern-day people, a new genetic study reveals. The finding ...

Early humans like Neanderthals probably kissed, and our ape ancestors could have done so as far back as 21 million years ago. There is wide debate over when humans began kissing romantically. Ancient ...

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 ...