Ocean

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?

At least 10,000 sharks have gathered in waters off the southern coast of Florida — but don't panic. They’re annual visitors that migrate south for the winter.

There's a new soft and squishy robot in town, and it's ready for some serious underwater business.

Sharks may use their keen sense of smell to navigate the vast ocean, a new study finds.

Leopard sharks may use smell to help them navigate the ocean, a new study finds.

El Niño is expected to be more beast than "little boy" this year — a forecast about the weather pattern that becomes clear in newly released maps of the waters around the equatorial Pacific Ocean.

The king crab could soon take over a whole new kingdom, and it has global warming to thank for the conquest.

Instead of waterways, will waste plastics soon end up in fuel tanks?