Saltwater jig hooks are vital tools for fishermen aiming to catch a variety of species in difficult ocean settings. These ...

This rarely seen glass octopus bared all recently — even a view of its innards — when an underwater robot filmed it gracefully soaring through the deep waters of the Central Pacific Ocean.

Trovants are rocks that grow by absorbing minerals from rainwater. Romania is home to a cluster of trovants that inspired ...

Discovered by scientists in 2000, more than 700 meters (2,300 feet) beneath the surface, the Lost City Hydrothermal Field is the longest-lived venting environment known in the ocean. Nothing else like ...

The deepest regions of Earth's oceans, known as the abyssal and hadal zones, lie at least as far under the water's surface as ...

Since 1937, the Golden Gate Bridge has spanned the Golden Gate strait, connecting San Francisco Bay to the Pacific Ocean. … ...

Certain metallic rocks seem to be making oxygen in the dark, without light or sunshine, at the bottom of the ocean.

China’s “Underwater Great Wall” effort to create anti-submarine systems is growing more sophisticated.

Thousands of marine species from microscopic zooplankton to the largest cetaceans rely on sound for survival and many have ...

A massive underwater volcano known as Axial Seamount could erupt soon, completely reshaping the floor of the Pacific Ocean.

Rising mountain peaks and sharp rock formations cover the ocean floor, with corals, sponges, fish, and tons of sea creatures ...

We’re talking about Dive Bar, a whimsical underwater-themed establishment where mermaids swim inside a fish tank! Now, if you ...