Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.

In his new book, Roland Ennos offers eye-opening ideas that the importance of physical power and engineering brilliance—rather than intellect—allowed us to dominate the planet.

The earliest ancestors of all backboned animals, including humans, may have viewed the world with four eyes, not just two.

Survival of the fittest. Nature red in tooth and claw. The common view of natural selection is based solely on the individual: A trait allows an organism to out-compete its rivals and is thus passed ...

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 ...