Earth’s magnetic field sustains life on our planet, protecting us from solar winds, radiation and extreme changes in temperature. But around 591 million years ago, it almost collapsed.

Researchers have uncovered physical evidence indicating that Earth was entirely frozen during the “Snowball Earth” period, spanning roughly 720 to 635 million years ago. During this period ...

A few fossilized body parts hinted at an enigmatic bird's close ties to waterfowl like ducks and geese. A newfound skull may bolster that idea.

Wageningen researchers have discovered that a vital plant protein originated more than 600 million years ago, long before the ...

shielding the Earth's surface from harmful solar radiation. The first multicelled animals appeared in the fossil record almost 600 million years ago. Known as the Ediacarans, these bizarre ...

A crater at the edge of the Yucatán peninsula in Mexico was created by a massive asteroid that hit Earth 66 million years ago At the end of the Cretaceous Period 66 million years ago, an ...