You won’t see these during the day. From alien-like fish to shocking surprises, we explore the ocean after dark to uncover what’s really lurking below.

Scientists have found evidence that a 300-million-year-old sea creature previously thought to be the world's oldest octopus ...

Far below the ocean’s surface, where sunlight can’t reach, some of the most unusual creatures on Earth thrive in complete ...

Researchers pulled 24 tiny new creatures from a deep abyss in the central Pacific Ocean, some with long, spindly legs and ...

Discover 15 endangered species that haven't changed since the age of dinosaurs. See the rare photos of nature's survivors.

Searching for alien languages sheds light on how much human languages have in common—with each other and even with animal ...

Dive into the abyss and discover 25 creepy deep sea creatures you've never heard of! From frilled sharks to vampire squid, ...

The Bloop may not have been the sound of a sea monster, but it did carry an important message for humanity: an early warning about climate change. As rising global temperatures threaten the polar ice ...

The ocean is still one of the biggest mysteries on Earth, and the deeper you go, the stranger it gets. Far below the surface, where sunlight can’t reach, lives a world full of creatures that look more ...