A monkey descending a tree trunk often keeps its head up, moving almost like a cautious climber backing down a ladder.

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

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

Researchers have shed new light on the features that enable tree-dwelling mammals to move effectively through their ...

The evolutionary journey from primitive plesiadapiforms to early primates during the Paleocene and Eocene epochs represents a critical chapter in mammalian history. Fossil records from these periods ...

Vertical locomotion in arboreal mammals is shaped by a complex interplay of body mass, limb proportions, grasping abilities, and head mass, and primates use distinct upright postures during descents.

Primates - the group of animals that includes monkeys, apes and humans - first evolved in cold, seasonal climates around 66 million years ago, not in the warm tropical forests scientists previously ...

AMSTERDAM — Kissing did not begin with star-crossed human lovers but with the primate ancestors of great apes around 20 million years ago, according to a study published on Wednesday. Researchers from ...