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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 >

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 >

Our Exhibits Meet State Standards!

Our diorama halls are just one place where teachers and chaperones can meet State Standards! To download easy-to-use field trip guides that are aligned with Standards.
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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!


Dall's sheep

Ovis dalli (Nelson, 1884)

Dall's sheep diorama in the North American Mammal Hall


 Skolai Pass in Wrangell Mountains, southeast Alaska


 Clarence S. Stacey and Hugh H.Logan

Background artist:

 Hanson Duvall Puthuff (1875-1972) and Robert C. Clark

Males of Dall’s sheep, also known as the thinhorn sheep, live in bands that seldom associate with female group except in the mating season (late November-early December).

Dominant males fight for access to females by forcefully slamming their horns together. The impact can often be heard from miles away.

Biological Information

Range map for the dall's sheep


Alaska and Yukon


Timberline of rocky, precipitous mountains


Common within protected reserves


Locally abundant in high mountainous terrain at high latitudes

Further information about this species may be found on the Animal Diversity Web page for Dall's sheep.