Most people have never heard of the rare, seven-armed creature MBARI recently filmed in the deep sea. Watch footage of it ...

The rare creature, called Haliphron atlanticus, was seen by the Monterey Bay Aquarium Research Institute's biodiversity and ...

Filmed deep off California, a rarely seen seven-arm octopus emerges from ocean darkness, revealing surprising size, unusual feeding habits, and how much of the deep sea remains unexplored by ...

Deep-sea creatures exhibit gigantism, with football-sized eyes and van-sized sponges thriving in crushing darkness. These ...

Almost a half-mile below Monterey Bay's surface, California scientists recorded rare footage of a seven-arm octopus eating a ...

A mysterious group of deep-sea whales was just spotted near a remote archipelago in the Atlantic Ocean — for the first time in years. The marine creatures — Gervais’ beaked whales — were seen off the ...

Meet the “ghost fish,” a phantom of the abyss. Here’s how we found the first ever proof of its existence just a few years ago. The deep sea is a part of the world that very few humans get the chance ...

A group of “rarely seen” Gervais’ beaked whales was recently spotted near Madeira, a Portuguese archipelago, photos show. Screengrab from the Magic Dolphin ecotour agency A mysterious group of ...