For centuries, massive teeth washing ashore left people wondering what kind of monster once ruled the seas. Those teeth belonged to the megalodon, the largest shark to ever exist. In this video, ...

The vast array of organisms in the deep sea remains a mystery to humans. Now, marine biologists can add one more puzzle to the list. A collection of odd materials was discovered nearly four miles ...

Picture a pair of eyes the size of soccer balls peering out at you from the dark depths of the ocean. For the colossal squid, ...

Scientists in New Zealand have discovered what may be the biggest example of the species ever recorded—at more than 13 feet ...

The mention of giant underwater creatures usually brings to mind mythological monsters. The great kraken, ancient leviathans, and if that fossil of a creature with 45 arms is a real-life Cthulhu. As a ...

For a long time, the idea of giant animals has mostly been tied to dinosaurs on land. Oceans feel different, quieter, even ...

NEW YORK — An underwater voyage has revealed a network of creatures thriving at the bottom of deep-sea ocean trenches. In these extreme environments, the crushing pressure, scant food and lack of ...

Marine animals living in the cold, dark depths of the ocean are interconnected across the world by a hidden “superhighway”, a groundbreaking new study suggests. The research, published in the journal ...

Boaters in California got the “rare treat” of spotting a sea creature, the group said. Getty Images/iStockphoto A group got the chance to spot a sea creature off the coast of California, and boaters ...