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

Human newborns arrive remarkably underdeveloped. The reason lies in a deep evolutionary trade-off between big brains, bipedalism and the limits of motherhood.

Dashiell Hammett mentioned Sam Spade's jutting chin in the opening sentence of his novel, "The Maltese Falcon." Spade's chin ...

Sixty-six million years ago, a 6 mile wide asteroid slammed into Earth and erased more than 75% of life on Earth in a geological instant. The catastrophe that ended the age of Tyrannosaurus and ...

What is it about a cheetah's build that enables it to run so fast? What gives the wolf its exceptional endurance? While these questions can be partly answered through animal experiments, many ...

Learn how the chin became an evolutionary byproduct that's unique to humans.

A set of ancient human fossils found on Morocco’s Atlantic coast now sits on one of the tightest timelines in African prehistory. The remains come from Thomas Quarry I, and a new analysis pins them to ...

That these cognitive skills — incongruity resolution and insight into others’ minds involved in teasing — appear before a ...

A long-disputed rule in biology says bigger is better, but a new computer model illuminates why that’s not necessarily true. By Lauren Leffer Published Jan 18, 2024 11:45 AM EST Get the Popular ...