Sperm whales dive into the midnight zone, using echolocation to track giant squid, returning scarred breathing hard, alive at sea.

Add Yahoo as a preferred source to see more of our stories on Google. Sea creatures have adapted to help them thrive in extreme environments. Unusual features allow them to live thousands of feet ...

Scientists filmed a squid covering itself in mud and holding its tentacles upright, using camouflage that helps it hide on the ocean floor.

Scientists previously captured rare footage of a giant squid. Now, they've filmed another huge squid species — the colossal squid. The first specimens of the colossal squid (Mesonychoteuthis hamiltoni ...

In fact, more people have walked on the Moon than have visited the deepest parts of our oceans. In this world of constant ...

Perhaps it was hiding from predators. Or trying to catch food. Then again, maybe it just wanted to be left alone. By Elizabeth Preston Like a scarf out of a magician’s sleeve, the squid appeared.

Sea creatures have adapted to help them thrive in extreme environments. Unusual features allow them to live thousands of feet below the surface. Underwater robots give researchers a glimpse at some of ...