Picture an animal that huddles up with others when stressed, babysits its young, hangs out around relatives, and gathers in big groups every year. Did you imagine a rattlesnake? For a long time, ...

Out on the reef, glass-bottom boat tours, snorkeling trips, and scuba dives reveal rainbow gardens of elkhorn and staghorn coral, goliath grouper, sea turtles, and more. “Going out on the water and ...

A transparent goby fish drifted through the darkness, its skeleton visible through paper-thin skin. Nearby, a sea slug wore ...

When Ted Judah goes scuba diving off the coast in Monterey Bay, he normally swims at the surface to the area above the dive ...

“These are quite likely the first-ever underwater photographs of a Ross seal. This animal lives so deep within the Antarctic ...

Florida's coastal landscape would dramatically change if sea levels rise over a certain level, a projection map by the National Oceanic and Atmospheric Administration (NOAA) shows. The map reveals how ...

Ukraine’s domestic security service, the SBU, said Monday that it had carried out an attack on a Russian submarine in the Black Sea port of Novorossiysk, causing critical damage to the vessel and ...

As it tried to demonstrate its continuing ability to fight, Ukraine said it had used drones to inflict serious damage on a Russian Kilo-class submarine at a Black Sea port. By Maria Varenikova ...

Swirling underwater “storms” are aggressively melting the ice shelves of two vital Antarctic glaciers, with potentially “far-reaching implications” for global sea level rise, according to a recent ...

Scientists are sounding the alarm after an unusually high number of sightings of sea snakes washed up on beaches in Australia. Over a dozen highly venomous sea snakes have washed up dead or become ...

New underwater drones, designed to sniff out hard-to-detect submarines and threats to vulnerable undersea cables, are being tested in the Baltic Sea. The GreyShark, developed by German technology ...