“Ankle bones of Purgatorius exhibit features that indicate it lived in trees, so we initially thought its absence south of Montana could be related to the sweeping devastation of forests from the ...

A monkey descending a tree trunk often keeps its head up, moving almost like a cautious climber backing down a ladder. Squirrels and many other mammals, by contrast, tend to go headfirst.

Three tiny Purgatorius teeth found in Colorado are helping scientists trace how early primates evolved and spread across North America.

Researchers have unearthed the tiny, fossilized teeth of the earliest-known relative of primates, pushing its range further south than ever before and giving us new insights into how it spread through ...

Researchers have shed new light on the features that enable tree-dwelling mammals to move effectively through their environments, providing insights into the evolution of the distinct upright postures ...

PUNCH the baby snow monkey and his stuffed orang utan have captured hearts worldwide, spawned memes and even won over the White House with their charm.

A few teeth, smaller than a grain of rice, are changing the map of your earliest primate relatives. They come from a creature called Purgatorius, a tiny tree-dwelling mammal that lived about 66 ...

The slow loris hardly looks dangerous with its huge, round eyes, soft fur, and tiny hands gripping tree branches; the animal ...

The London Company, an investment management company, released its fourth-quarter 2025 investor letter for its “The London ...

This photograph shows two species from the study by Toussaint et al. – a raccoon (Procyon lotor) and mongoose lemur (Eulemur mongoz) – climbing on vertical supports. Researchers have shed new light on ...

On May 5, the Captive Primate Safety Act (CPSA) was reintroduced in Congress. This bipartisan bill, sponsored by Sen. Richard Blumenthal (D-CT) and Reps. Mike Quigley (D-IL), Brian Fitzpatrick (R-PA), ...