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Sep 7 2012 - 4:00pm
Sea butterflies (also called pteropods) are sea snails aptly named: they are shelled marine snails, each with a foot like a wing, that swim in the water column like butterflies. This one, Atlanta peronii, is very small: the biggest specimen on record was less than half an inch (11 millimeters) long...
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Jan 26 2010 - 11:45am
These Pacific cephalopods illustrate the wide diversity among this group of mollusks. You can learn about a relative, the giant squid (Architeuthis dux), in our Giant Squid section.
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Sep 1 2011 - 10:22am
Invasive species can have a range of environmental and economic impacts. In this photo sea squirts foul an oyster cage. Scientists at the Smithsonian Environmental Research Center's Marine Invasions Lab study the movement and effects of non-native species around the globe. One region they've been...
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Aug 3 2010 - 9:54am
This beautiful spider conch (Lambis chiragra) was collected by Census of Marine Life scientists conducting research near China.
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Sep 27 2011 - 1:09pm
Regardless of what continent you live on, the waters that surround it are home to marine invaders. The ocean is teeming with plants and animals willing and able to move beyond their native habitats. Often all they need is a ride. Enter: humans. Some invaders hitchhike on ship hulls or inside...
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Feb 15 2013 - 10:56am
This pair of sea butterflies (Limacina helicina) flutter not far from the ocean's surface in the Arctic. Sea butterflies are a type of sea snail, but instead of dragging themselves around the seafloor with a muscular foot, they flap their adapted feet like butterfly wings! They are very small—...
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Nov 5 2010 - 1:08pm
The Great Barrier Reef site in Australia was inscribed on the World Heritage List in 1981. The site is the world’s most extensive stretch of coral reef with probably the richest animal diversity anywhere. There are over 1,500 species of fish, about 400 types of coral, 4,000 types of mollusk (...
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Jul 27 2011 - 11:05am
Shellfish from the Chesapeake Bay are prized by seafood lovers. But the Bay's ecosystem and fisheries are threatened by human disturbances, including the introduction of non-native species.
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Nov 8 2011 - 4:34pm
Amanda Feuerstein with a nesting olive ridley (Lepidochelys olivacea). Feuerstein is a co-author of a study that surveyed algae, crustaceans, mollusks, and other epibionts that live on olive ridley and green sea turtles in the Pacific Ocean. You can read about the study on the Ocean Portal blog.
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Nov 8 2011 - 5:39pm
These baby olive ridleys (Lepidochelys olivacea) will eventually provide a home to crustaceans, mollusks, and other epibionts. That's according to a survey of epibionts living on mature, nesting olive ridleys and green sea turtles in Jalisco, Mexico. The related study was published in the October...
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May 2 2013 - 10:48am
Editor's note: This is an excerpt from Daniel Botkin's new book The Moon in the Nautilus Shell: Discordant Harmonies Reconsidered. He will be in Washington, D.C. on Wednesday, May 8th for a lecture and book signing through the Smithsonian Associates.
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Dec 20 2010 - 11:44am
Yolanda Villacampa is a museum specialist in the invertebrate zoology department of Smithsonian's National Museum of Natural History. She is standing surrounded by the invertebrate zoology collection.
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Jul 26 2010 - 6:21pm
Melissa Frey, Encyclopedia of Life (EOL) Rubenstein Fellow, examines a Pacific oyster (Crassostrea gigas) on a chilly day in Sidney, British Columbia. In addition to holding an EOL Fellowship, Melissa is a Research Associate at the Royal BC Museum, where she continues to engage in taxonomic studies.
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