They're tiny, blobby, butt-shaped, and glow in the dark. What the heck are they? Scientists are still figuring them out.

At around 3,300 meters (2 miles) below the surface of the ocean off the coast of Alaska, where the warm light of the Sun ...

Millions of years ago, a group of adventurous iguanas, probably from Mexico, crossed the Pacific Ocean to Fiji on giant rafts ...