This new species of ancient arthropod has been affectionately named Sue and scientifically dubbed Keurbos susanae.

Could supernovas have triggered ancient mass extinctions on Earth? New research explores how cosmic explosions may have ...

In place of oxygen, the ocean was full of hydrogen sulfide, which the researchers believe may have caused the organism to ...

The world's largest-ever scorpion wasn't tiny. It was bigger than humans and at one point in time, you could find it roaming ...

After Earth's worst mass extinction, surviving ocean animals spread worldwide. Stanford's model shows why this happened.

Stanford scientists found that dramatic climate changes after the Great Dying enabled a few marine species to spread globally ...