Even though there are 8 billion people on Earth today, a catastrophe could send that number much lower within a few decades.

To answer these questions, it is easiest to start with the amount of gold that humans have mined to date. The U.S. Geological ...

Subduction zones, where one tectonic plate dives underneath another, drive the world's most devastating earthquakes and ...

A pair of canines found in Siberian permafrost were wolf sisters that died shortly after eating.

Earth's magnetic field and oxygen levels have increased more or less in parallel over the past 540 million years, suggesting ...

Researchers armed with the Hubble Space Telescope have revealed that some of Uranus' largest moons have one side brighter ...

Space weather experts warn that a "moderate" geomagnetic storm could rock Earth over the weekend, potentially lighting the ...

Breathing patterns among humans are so unique that they can work as an identification tool, scientists report. They propose ...

Low iron levels can flip the genetic switch on a mouse's sex during development, causing XY embryos to grow female features.

A legal scholar with a doctorate in wildlife genetics explains the promise biotechnology techniques hold for some animals ...

The Zanj, enslaved people largely from Africa, rebelled at the same time they were ordered to build a massive system of ...

In patients showing cognitive decline, a new blood test for Alzheimer's is expected to make diagnosis more convenient, ...