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A harp seal in icy water
Photo

Harp Seal

Harp seals depend on seasonal ice during the breeding season. Their populations may...
A fur seal in kelp
Photo

Fur Seal

Warming climate, changing ocean chemistry, and overfishing threaten kelp forests...
A school of Atlantic bluefin tuna
Photo

Atlantic Bluefin Tuna

Endangered Atlantic bluefin tuna are caught in the wild and fattened in pens for...
A translucent pteropod swims freely in the open ocean with a black background.
Photo

Shelled Pteropod

Changes in ocean chemistry destroy the shelled pteropods that this “naked sea...
Phoenix Islands protected area
Photo

Phoenix Islands

Unlike most coral reefs, those of the Phoenix Islands are protected from pollution...
Juvenile Clam with Tentacles
Photo

Spaceship Mollusk

No, this is not an alien spaceship from another world—it is a baby file clam...
Hagfish Slime Thread
Photo

Spin Hagfish Slime into Silk

Believe it or not, this unraveling thread is from hagfish slime. Hagfish are...
Mangrove Salt Glands
Photo

How Mangroves Deal with Saltwater

Looking at a white mangrove (Avicennia marina) leaf cross-section under the...
Zooplankton are small—but do you know just how small? This drop of water smaller than the eye of a needle is magnified 20x and contains multitudes.
Photo

Zooplankton in the Eye of a Needle

Zooplankton are small—but do you know just how small? This drop of water smaller...
Fireworm Setae
Photo

Fireworm Bristles

No, this isn't a bundle of paintbrushes: you're looking at a fireworm...
Dover Sole Skin
Photo

Close-Up of Dover Sole Skin

This close-up of the skin of dover sole (Solea solea) masks its true ability: to...
Even when a lobster is still a developing egg, you can see some of its adult features: an eye and legs.
Photo

Lobster Egg

Even when a lobster is still a developing egg, you can see some of its adult...

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    • Census of Marine Life
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