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a string of cyanobacteria
Photo

Cyanobacteria

This blue-green microbe called a cyanobacterium was likely the first photosynthetic...
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
Seagrasses are flowering plants that can form dense underwater meadows and are an important shallow water habitat.
overview

Seagrass and Seagrass Beds

Seagrasses are found in shallow salty and brackish waters in many parts of the...
April 2018
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...
This tentacle belongs to a blue button. While it has a central “float” with streaming tentacles like typical jellyfish, the blue button is a colony of many small hydroid animals.
Photo

Blue Button Tentacle

This tentacle belongs to a blue button (Porpita porpita), an animal that looks like...
Lacy Crust Bryozoans
Photo

Lacy Crust Bryozoan

This colony of a lacy crust bryozoan (Membranipora membranacea) started off as just...

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