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On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
overview

Sea Level Rise

The ocean never stops moving. When you visit the beach, waves roll in and recede...
April 2018
This recently discovered hairy crab species (Kiwa hirsuta) has no eyes.
overview

The Census of Marine Life

Did you know that over 17,000 species thrive in the deep sea where no light...
April 2018
A shell placed in seawater with increased acidity slowly dissolves over 45 days.
overview

Ocean Acidification

Ocean acidification is sometimes called “climate change’s equally evil twin,”...
April 2018
Bubbles of methane gas rise through a mussel bed in the Gulf of Mexico.
Photo

Methane Bubbles Up From Seep

Methane gas, trapped deep within the Earth's crust, can slowly leak from cracks in...
Weddell seals grind their teeth on holes in the ice to keep them open to their comings and goings between ocean and air.
Photo

Weddell Seal in Antarctic Water

Weddell seals grind their teeth on holes in the ice to keep them open to their...
A summertime channel carries melted ice to the sea. Antarctica and Greenland lose around 350 billion tons of ice each year from such melting.
Photo

Ice Melt at the Poles

It’s confirmed: both Antarctica and Greenland are losing ice—around 350 billion...
A transparent amphipod looks a bit like a lobster, surrounded by white eggs.
Photo

Amphipod: Salp Invader

Can you spot the amphipod (Phronima atlantica) in the below photo? She's the...
Scientist Kevin Raskoff processes samples of DNA
Photo

Building a Database

Expedition data went to the Arctic Ocean Diversity database of...
A marine biologist measures the temperature of an ice core.
Photo

Measuring Ice Core Temperatures

Marine biologist Mette Kaufman measures the temperature of a recently-drilled ice...
On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
Photo

Ice Melt in Iceland

On average, Arctic sea ice has decreased by four percent per decade since the late...
This jelly’s red color provides camouflage in the ocean depths.
Photo

Unidentified Comb Jelly

This jelly’s red color provides camouflage in the deep ocean. Red light rarely...
Photograph of a translucent red-orange comb jelly against a black sea.
Photo

Red Mid-Water Comb Jelly

Like this ctenophore (Aulococtena acuminata), many animals that live in the...

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