A sediment-washing “bubbler” helped researchers recover 65.5-million-year-old teeth that illuminate how early primate ...

Our understanding of female–male power relationships in animals has changed over time. Evolutionary biologists once thought that male mammals held clear-cut power over females. Later, species with ...

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

Learn about the different ways mammals descended from trees and what this can tell us about early primate evolution.

New research shows gut bacteria can directly influence how the brain develops and functions. When scientists transferred microbes from different primates into mice, the animals’ brains began to ...