As oil companies push for drilling on the Amazon coast, an underwater war silences the ocean’s most vocal creatures.

Boaters got the chance to see a “powerful display of strength and energy” during their “spectacular adventure.” ...

It’s not often you witness the ocean at its most primal, but that’s exactly what marine biologist and underwater photographer ...

“Life in the Ocean,” now in its fifth year, showcases 57 pictures by local underwater photographers who belong to the San ...

Combined with their recent fad for sinking yachts, killer whales are starting to look like the Robin Hoods of the sea.

A white whale calf swimming with its mother off Australia created a memorable moment, while a pod of rare Baird’s beaked ...

A pod of humpback whales encountered a group of killer whales during feeding time off the coast of California. On June 24, a ...

Researchers using a new drone say they have observed killer whales finding and modifying stalks of kelp to preen each other.

A group got the chance to spot a sea creature off the coast of California, and boaters are calling the experience “amazing.” ...

Researchers bring a SETI approach to the question of what—if anything—humpbacks’ underwater smoke rings might be trying to ...

An earlier study shows that scientists with the SETI Institute were able to have a “conversation” with a humpback whale named Twain by playing whale calls through an underwater speaker.