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Home  >  Cool Critters  >  Alaska Ecology Cards  >  Shellfish

Traits: Invertebrate animal (mollusk) with two-valved shells hinged on one side, a small head, and a compressed body

Habitat: Varies by species; some burrow in sand, mud, or rocks.

Foods: Filter detritus, algae, protozoans, small crustaceans, insect larvae from the water

Eaten by: Snails, sea stars, certain fish, diving ducks, emperor geese, shorebirds, sea otters, humans

Do You Know? Clams can burrow very rapidly by extending their "foot" into the sand or mud, expanding the tip to act as an anchor, and pulling themselves down.

Special thanks to the ADF&G Division of Wildlife Conservation.

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