Author: Carolyn Gramling

Serrations at the edges of a fossilized flipper of the ancient marine reptile Temnodontosaurussuggests it may have been able to swim silently.

The U.S. push to mine international waters for metals defies global efforts to control and protect these fragile ecosystems.

If the new age of these Canadian rocks is solid, they would be the first and only ones known to have survived Earth’s earliest, tumultuous