A night dive off Komodo Island, Indonesia, turned unforgettable when an underwater videographer came face-to-face with one of the ocean’s best masters of disguise: the marine file snake. At first ...

For millions of years, the land we now call the United States has been home to towering prehistoric beasts, strange sea creatures, and lush ancient forests that no longer exist. Evidence of this ...

Learn about Dunkleosteus, an ancient apex predator that ripped apart large fish with sharp bony blades that lined its mouth.

When some of the more entrepreneurial lifeforms started moving from water to land some 390 million years ago, things soon got ...

(CNN) — A rare fossil has provided a snapshot of what was an exceptionally unlucky day for a prehistoric sea cow. The now-extinct species of dugong, a manatee-like marine mammal, was swimming in the ...

Scientists have found wolf remains, thousands of years old, on a small, isolated island in the Baltic Sea—a place where the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more A rare fossil has ...