The animal, closely related to jellyfish, is distinguished by its 'balloon-like' float ...

Add Yahoo as a preferred source to see more of our stories on Google. A close up of the great American Alligator in Black Bayou National reserve in North East ...

The creatures, which ranged in size from that of a fox to more than 50 feet long, divided their time between the coast and the water Riley Black | Science Correspondent Key takeaways: Walking whales ...

Known as by-the-wind sailors because of the way they catch the ocean breeze using the sail-like fin on top of their bodies, Velella velella are stinging animals closely related to jellyfish, sea ...

The ocean is home to some of the most awe-inspiring creatures on Earth, many of which dwarf anything found on land. From massive whales to elusive deep-sea dwellers, these giants of the sea ...