From the creepiest Cambrian critters to massive marine reptiles, wonderfully weird sea creatures have inhabited our oceans for over half a billion years. We've put together a list of 25 of the ...

The largest animal ever known, this gentle giant reaches massive lengths, dominating ocean ecosystems with pure majestic presence. This intelligent predator use camouflage and can squeeze itself ...

Aquatic monsters are among the most specialized, as they feature unique movement modes and completely alien physiologies. Most player characters will be out of their element when fighting underwater.