A recent study reveals that slow ocean expansion 15-6 million years ago caused sea levels to change and drop by up to 30 ...

The tropics, where biodiversity and interactions among species abound, provide an alternative view of relationships between ...

New research shows that North America is slowly sinking into the earth, and there's nothing we can do to stop it.

The land bridge created by mantle-driven uplift gave early primates and other animals opportunities to branch out.