Longer thumbs mean bigger brains and this is “pivotal” to human evolution, research has found. Scientists studied 94 fossils and living animals to understand how our ancestors developed their gripping ...

It suggests that manual dexterity and brain evolution are connected across the entire primate lineage, from lemurs to humans. Notably, the correlation held even when human data were excluded, ...

A new study explains how climbing down trees helped shape upright posture in early primates and changed the course of evolution.

BUFFALO, N.Y. ­­ ­ ­­— Saliva is a bodily fluid most of us take for granted despite the significant roles it plays: aiding in digestion, maintaining strong teeth and defending against oral disease.