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The Making of a Diorama

The Habitat Views video considers ways of looking at dioramas today, and documents the creation of several new displays. Take a look over on our  YouTube channel >

Recreating Nature Indoors

Ever wonder who made the dioramas in our mammal halls? Read all about the artists who created these wonderful scenes. Learn more >

First Fridays: Previous Seasons

Over the past decade, First Fridays has introduced adult audiences to a new kind of museum experience.

Explore past First Fridays and see which of your favorite scientists and musicians were here at NHM!

Los Angeles is for Hikers

Get out and explore any of the 82 great hiking trails located right here in L.A. This guide book features short and long day hikes while keeping you close to home. 
Shop Here



Odobenus rosmarus (Linnaeus, 1758)

Walrus diorama in the North American Mammal Hall


 Drift ice, Bering Sea near Saint Lawrence Island, Alaska


 Hugh H.Logan

Walruses are among the strangest living mammals. They feed on animals that live on or in the sea floor. Their large tusks are used in fighting but also for cutting through ice, hooking over ice for stability while sleeping, and helping to pull its body out of the water. Walruses sometimes use their heads to break through ice up to 8 inches thick. The male walrus baculum (penis bone),may be up to 24 inches long.

Biological Information

Range map for the walrus


Circum-polar: northeast coast of Siberia, northwest coast of Alaska, north and northwest coast of Greenland, and Ellesmere Island


Arctic Ocean near edge of polar ice


Populations small but not currently threatened


Shellfish, echinoderms and crabs

Further information about this species may be found on the Animal Diversity Web page for walrus.