Oceans

Climate

Warming ocean water is turning 99 percent of these sea turtles female

Green sea turtle populations in part of the Great Barrier Reef are becoming increasingly female due to higher ocean temperatures.

Oceans

Corals are severely bleaching five times as often as in 1980

Corals are now bleaching more frequently and severely than they were in the early 1980s.

Climate

The Larsen C ice shelf break has sparked groundbreaking research

The hubbub over the iceberg that broke off Larsen C may have died down, but scientists are just getting warmed up to study the aftermath.

Earth

Watching this newborn island erode could tell us a lot about Mars

The birth and death of a young volcanic island in the Pacific Ocean may shed light on the origins of volcanoes in Mars’ wetter past.

Animals

Narwhals react to certain dangers in a really strange way

After escaping a net, narwhals significantly lower their heart rate while diving quickly to get away from humans.

Animals

Most blue whales are ‘righties,’ except for this one move

Though many blue whales tend to be “right-handed” when hunting for krill, one specific barrel roll move requires a lefty twist.

Oceans

In the deep ocean, these bacteria play a key role in trapping carbon

Mysterious nitrite-oxidizing bacteria capture more carbon than previously thought and may be the primary engine at the base of the deep ocean’s food web.

Climate

Climate foiled Europeans’ early exploration of North America

The book ‘A Cold Welcome’ examines how the Little Ice Age and other climatic and geographic factors shaped colonial history.

Earth

Wind may be driving the melting of East Antarctica’s largest glacier

Winds may be helping warm ocean waters speed up the melting of East Antarctica’s largest glacier.

Animals

Here’s the real story on jellyfish taking over the world

In 'Spineless,' a former marine scientist reconnects with the seas and science through her obsession with these enigmatic creatures.

Life

A new material may one day keep mussels off piers and boat hulls

Mussels don’t stick to a new lubricant-infused silicone material.

Climate

‘Killer Hurricanes’ reconstructs the past to predict storms of the future

Geologists find clues to the future of deadly hurricanes, written in stone and sand, in the new NOVA documentary “Killer Hurricanes.”