Biologists have debated the reason why Homo sapiens evolved a prominent lower jaw, but this unique feature may actually be a by-product of other traits shaped by natural selection ...

KWONG: Oh. OK, so you found out in your research - by tracing the phylogenetic tree of kissing through primates, you found out that kissing was likely present in the ancestor of all apes who lived 21 ...

But genetic analyses over the past two decades have revealed traces of several human ghost lineages in the ancestry of people today and in the ancient DNA recovered from fossils. These human ghost ...

The evolutionary purpose of kissing has long eluded scientists. Smooching is risky, given things like pointy teeth, and ...

“The chin evolved largely by accident and not through direct selection, but as an evolutionary byproduct resulting from direct selection on other parts of the skull,” University of Buffalo biological ...

In my new book, Understanding the Tree of Life, I explore why it is fundamentally misleading to view any current species as primitive, ancient or simple. Why understanding the tree of life matters --- ...

We humans have long viewed ourselves as the pinnacle of evolution. People label other species as "primitive" or "ancient" and ...

It’s a common mistake to think we came directly from the monkeys or chimps you see at the zoo today, […] ...

According to YouGov surveys, 15 per cent of British men and 22 per cent of US men believe they could beat a chimpanzee in a ...

Over centuries, artists and censors have employed the humble fig leaf to cover the penis – including on Michelangelo’s ...

A new study comparing 59 species of primates linked same-sex sexual behavior to scarce resources and more predators in socially complex species. The findings show diverse sexual behaviors are common — ...