Ocean

A larvacean with a giant mucus house glides through the water, filtering out goodies to snack on.

Algae blooms on the West Coast of the U.S. in 2015 were bigger and more toxic than ever before, and have been linked to warm ocean conditions.

The deep-sea diving Gonatus squid has a hearty appetite, even when it comes to eating its own kind, a new study finds.

Getting peed on is a good thing, at least for coral reefs, scientists have found.

The discovery of a new species of rare and elusive whale in the North Pacific shows how little humans know about the deep and vast ocean, researchers say.

A global shark census is underway. What have scientists discovered thus far?

As shark attacks dominate Australian headlines, an annual survey reports that there were more shark attacks worldwide in 2015 than in any other year on record.

An Airbus jet was sunk to draw ocean flora and fauna, and thus divers and tourists.

An unusual sponge was making waves in waters near the Hawaiian Islands — though it doesn't wear square pants and is far too big to live in a pineapple under the sea.

Warming oceans are bad news for a number of marine species, but cephalopods are doing just fine.

The bottle started as a research project and is now a world-record holder.

The East Coast is sinking, which is worsening the impacts of sea level rise. These are the hot spots.

Australia's Great Barrier Reef corals are in trouble, with the northern part of the reef experiencing "the worst mass bleaching event in its history."

A recent high-profile study led by US climatologist James Hansen has warned that sea levels could rise by several meters by the end of this century. How realistic is this scenario?