While we haven't quite found any living dinosaurs roaming around (sorry, kids), several presumably extinct creatures have sparked ... are rumored to be home to sea monsters lurking in the depths.

Fifteen million years ago, now-extinct species of dolphins, whales and large sea cows roamed the world’s oceans, topping the underwater food chain. Yet back then, any one of these creatures ...

Octopuses are cephalopods that live in oceans around the world. They are also some of the most intelligent creatures on Earth ...

Some creatures have remained unchanged for millions of years, surviving drastic climate shifts and evolution. Meet 10 living ...

Researchers have revisited a remote site in the Pacific Ocean that was used as a test for deep-sea mining in the 1970s. They ...

Today, these labyrinthine passages host a variety of tiny sea creatures found nowhere else ... many of which are now locally or globally extinct. Scientists recognized some bones from the roost ...

In a world where new species are constantly being discovered, some creatures remain hidden in the depths of the ocean, ...

A new study shows that exposure to pesticides and microplastics could set back the recovery of sunflower sea ... creatures once common in the tide pools along Oregon’s coast but now nearly extinct.

Some scientists claim that octopuses could be the next big species after humans go extinct and that there is much to learn about the tentacled sea creatures. These are some ways that octopuses ...