This has been quite the wild year in human evolution stories. Our relatives, living and extinct, got a lot of attention—from ...

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 ...

If we look across the whole of the mammal branch of the tree of life, we find there are many groups of mammals that have evolved testicles of all different sizes. In almost all these separate cases, ...

Human evolution’s biggest mystery, which emerged 15 years ago from a 60,000-year-old pinkie finger bone, finally started to ...

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 ...

Is God a singular, independent being? Or just an evolved projection of human's theory of what God should be? Slate's Jesse Bering finds himself asking these heady questions after an analysis of how ...

Humans evolved large brains and flat faces at a surprisingly rapid pace compared to other apes, likely reflecting the evolutionary advantages of these traits, finds a new analysis of ape skulls by UCL ...

In 1758, Swedish biologist Carl Linnaeus gave humans a scientific name: Homo sapiens, which means "wise human" in Latin. Although Linnaeus grouped humans with other apes, it was English biologist ...

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 ...

Much like our brains, human muscles have evolved several times more rapidly than primate muscles, according to a new study — but that process has made us weaker over time in a process, while brains ...

Like the latest iPhone model, new dog breeds drop all the time. In early 2025, the American Kennel Club officially announced the Danish-Swedish Farmdog as the 202nd recognized dog breed. It’s only the ...