During a dive off Argentina, scientists documented a rare jellyfish discovered a little over a century ago and seldom seen since, as well as the fish that keep it company.

In the mesmerizing footage, captured via an autonomous submersible known as ROV SuBastian, the Goliath sea jelly is seen ...

So what, exactly, is Slippery Fish? And why would Ryan Shimabukuro — and some other folks connected to the American team — be so tight-lipped about it?

In this heart-stopping clip, we see a moose rescued from ice by some brave rescuers who risk their own safety!

From riverbanks to shallow lakes, Spinosaurus combined display, biomechanics and hunting power in one of evolution’s strangest designs.

A great white shark is a masterwork of evolutionary engineering. These beautiful predators glide effortlessly through the ...

Twelve non-dinosaur rulers show Earth’s old power: armored fish, giant insects, sky titans, sea kings, and saber teeth across ...

There are many types of penguins, a family of flightless aquatic birds that live primarily in the Southern Hemisphere. Read ...

Wondering about the weirdest animals in the world? We've listed the Top 31 here — including the axolotl, aye-aye, blobfish, and goblin shark.

Researchers evaluate how standard animal welfare guidelines account for the biological needs of fish and other aquatic animals, including access to dissolved oxygen. A new essay published in Issues in ...

Six people were killed in Mississippi shootings Friday night by a single gunman in incidents that sprawled across three different crime scenes, according to the Clay County Sheriff’s Office.