“It’s the unknown,” says Erich Hoyt, author of Creatures of the Deep: In Search of the Sea’s Monsters and the World They Live In. “You look out on the ocean and you might see a dolphin ...

To survive the deep ocean, sea creatures need all kinds of adaptations that give them alien-like appearances, like huge eyes ...

A "very odd" sea creature fossil from Vancouver Island has been officially identified as a new species, Traskasaura sandrae.

A brave dog is going viral after investigating a mysterious floating object in the sea, initially feared to be a sea monster ...

As if your garden variety serial killer weren’t scary enough, Australia-set terror show “Dangerous Animals” features a sicko whose weapon of choice is … sharks. In some ways, the notion’s scarier than ...

The deep sea creature also attract its prey using a flashing light light at the end of its long dorsal spine. Its teeth are so big, the viperfish can’t even close its mouth. This eel-like ...

From massive sea creatures to strange-looking animals in the forest, some of nature’s weirdest animals might look scary, but they’re actually harmless to people. In fact, they play an ...

Big teeth, beady eyes, and spiky skin might scream danger, but not all creatures that look like nightmare fuel are out to get you. Some of nature’s creepiest-looking animals are total softies ...

Despite Godzilla being a formidable and scary creature itself ... Ebirah is a gigantic crustacean that plagued the Pacific sea. Though he was a mutated kaiju, he was sometimes treated as more ...

The Black Swallower is known as the deep sea’s ultimate overeater ... But beyond the scary looks, the female anglerfish is also one of the most fascinating creatures in the ocean, proving that being ...

Let’s not be all big and brave about it ... You might not even have a fear of sea animals or thalassophobia, but you still have to admit it can get creepier the more you think about it.