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Jan 6 2011 - 3:36pm
Several species of amphipod like this one, Gammarus wilkitzkii, live permanently within Arctic sea ice. These animals are endemic, meaning they only live here. They acclimate to a wide range of salt levels in the water using a physiological response called osmoregulation.
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Nov 18 2010 - 6:07pm
Alaskan king crab fisheries are on the rebound after years of unsustainable exploitation. New regulations mean that immediately after a haul is brought on board, the crabs are sorted and all females and under-sized crabs are released.
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Feb 7 2011 - 8:02pm
What can students do to help the ocean? It turns out, a lot! These students from California are among dozens from the U.S. and Mexico who are developing action plans on ocean and climate-related issues in their local communities. They’re getting advice from their teachers and experts at aquariums...
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Jul 5 2012 - 9:46am
When they get larger, Portunus sayi are formidable predators- quick to consume any smaller animal that comes within reach. Fish, other crustaceans, and even smaller members of their own species are not safe from this hungry sargassum swimming crab.
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May 16 2013 - 9:04am
In this video Smithsonian research zoologist Dr. Martha Nizinski takes viewers with her as she searches for crustaceans in the deep sea. She's particularly interested in finding squat lobsters, which despite their name, are actually crabs. On this dive in the waters off Curaçao, she discovers some...
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Jun 6 2011 - 12:11pm
A squat lobster and blackbelly rosefish find shelter on a Lophelia pertusa coral reef off the southeastern United States. The Johnson-Sea-Link submersible captured this image in 2009.
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Feb 11 2013 - 10:17am
This swimming crab (Liocarcinus holsatus) has a parasitic barnacle rooted in its reproductive system. This invasion cuts off all reproduction for an infected crab and can even cause a male crab to change behavior — males don't normally take care of crab eggs, but the infected male will take care of...
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Jan 26 2010 - 11:45am
This close-up photo of a right whale's head shows dozens of hitchhikers—tiny crustaceans known as whale lice, or cyamid amphipods. They live on the rough patches of skin (known as callosities) on North Atlantic right whales, eating algae that settles there and only causing minor skin damage....
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Oct 27 2010 - 6:16pm
This giant isopod (a crustacean related to shrimps and crabs) was collected from the cold, deep waters of the Gulf of Mexico in 2006. Scientists believe that it is one of about nine species in the genus Bathynomus.
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May 20 2012 - 1:03pm
A mantis shrimp (Odontodactylus scyllarus) holds her clutch of eggs in her clubbed claws. Usually these claws are weapons that punch hard-shelled prey at speeds of more than 50 miles an hour.
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Dec 8 2010 - 12:54pm
Scientists met the robotic glider Scarlet Knight about halfway along its journey of scientific exploration from the United States to Spain, discovering that barnacles were growing on the glider’s body, as this graphic illustrates. As algae began to grow on the glider’s exterior surface, small sea...
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