Purgatorius makes a comeback in Colorado This early 2026 discovery deserves your undivided attention. Led by Dr. Stephen ...

Fossils are rare because their formation and discovery depend on chains of ecological and geological events that occur over deep time. Only a small fraction of the primates that have ever lived has ...

Modern tarsiers are tree-dwelling primates that live on Southeast Asian islands. The tarsier lineage split off from the anthropoids, the lineage that gave rise to monkeys, apes, and humans, just ...

A tiny tooth can disappear between your fingertips without much effort. Yet some of the earliest clues to our own ...

Tiny fossil teeth discovered in Colorado reveal new clues about Purgatorius, the earliest known primate relative, reshaping ...

The study of dental microwear allows the analysis of the microscopic marks that foods leave on the surface of tooth enamel ...

Illustration of Ekgmowechashala, the last primate to inhabit North America before humans. Credit: Kristen Tietjen, scientific illustrator with the KU Biodiversity Institute and Natural History Museum.

The study of dental microwear allows the analysis of the microscopic marks that foods leave on the surface of tooth enamel ...

That places the fossils about 656,000 to 560,000 years after the boundary. A broader cast of “almost primates” Purgatorius matters because it sits near the base of a larger family tree. The paper ...

A new study challenges the long-held idea that early primates began in warm tropical forests. Fossil and climate evidence ...

Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years. Mountains have been built and eroded, continents and oceans have moved ...