Sixty-six million years ago, a massive asteroid smashed into Earth. Life has undergone at least five mass extinctions in the ...

Tiny, tooth-sized fossils have just reshaped the story of our deepest ancestry. Paleontologists have discovered the southernmost remains ever found of Purgatorius—the earliest-known relative of all ...

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

The strawberry guava, one of the world’s worst invasive species, hinders forest restoration on the island while feeding its ...

An extinct relative of the howler monkey may have been the first leaf-eating primate in South and Central America ...

Thirteen million years ago, a group of medium-sized monkeys known for guarding their territory among the treetops with fearsome "howls" started doing something new. These monkeys, among the oldest ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Mammals descend trees in different ways, and primates stand apart. (CREDIT: Andrew Mercer / Wikimedia Commons / CC BY-SA 4.0) A ...

Throughout the Amazon Rainforest, forest fragmentation represents an escalating and existential threat to the preservation of ...

In the wild, Punch's fellow Japanese macaques are often seen as pests to be shooed away or even eliminated to prevent economic damage to farmers.

A sediment-washing “bubbler” helped researchers recover 65.5-million-year-old teeth that illuminate how early primate relatives spread after the mass extinction.

New minuscule fossils of Purgatorius, the earliest-known relative of all primates—including humans—have been unearthed in a ...