A team has created the most complete map of the world's rivers ever made offering a major leap forward for flood prediction, climate risk planning, and water resource management in a warming world.

A tree-ringed African lake has yielded a record of Earth's magnetic field spanning the past 150,000 years.

Warming in the Arctic is intensifying methane emissions, contributing to a vicious feedback loop that could accelerate ...

The horse originated in North America around four million years ago. As changing sea levels created land bridges between ...