Long before mammals dominated the land and even before the most famous dinosaurs appeared, Earth was home to a wide variety ...

Baby dinosaurs weren’t coddled like lion cubs or elephant calves—they were more like prehistoric latchkey kids. New research suggests that young dinosaurs quickly struck out on their own, forming ...

Many mammals have fur the color of brown and black. Why don't they have more exotic colors, like purple and neon pink?

Mammals primarily exhibit muted earth tones due to their reliance on melanin and a lack of structural color complexity in fur. This drab coloration evolved as a survival mechanism to hide from ...

Most mammals wear coats of brown, black, and gray, while parrots flash brilliant reds, reef fish shimmer in electric blue, and chameleons shift between greens and golds. This disparity is not random.

A nearly complete dinosaur skeleton discovered in Patagonia is helping scientists crack the mystery of alvarezsaurs, a bizarre group of bird-like dinosaurs. The fossil of Alnashetri cerropoliciensis ...

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

Discover the untold stories of Earth's mass extinctions through NBC's new series Surviving Earth, premiering June 4. Get a ...

The biological mystery of how many mammals transitioned from being nocturnal to active in the daytime following the extinction of the dinosaurs has been cracked by researchers in Cambridge. The study, ...

When the asteroid ended the age of non-avian dinosaurs, it cleared ecological space on a global scale. Small survivors ...

For years, we suspected that Alvarezsaurids underwent a rare process of evolutionary miniaturization directly coupled to a ...

Scientists in Patagonia unearthed the nearly complete skeleton of Alnashetri cerropoliciensis, one of the world's tiniest ...