MAMMALS OF POLAR REGIONS 49 



On the south side of the hall are displayed the cloven-hoofed animals 

 of North America. These include sheep, musk ox, caribou, 

 GrouD collared peccary and various species of deer. At the extreme 



end of the hall is a group of antelope showing the manner in 

 which they wander across the plains. This animal possesses the power to 

 raise or lower at will the long hairs on the rump in such a manner that the 

 light is reflected as from a mirror, and by this flashing the animal is said to 

 signal approaching danger. On the north side of the hall are shown the 

 rodents and carnivores. [See Gvide Leaflet No. 5.] 



SOUTHEAST PAVILION 



1. Mammals of the Polar Region 

 2. Reptiles and Amphibians 



Proceeding eastward beyond the antelope group we enter the Southeast 

 Pavilion containing the boreal 



animals of North 

 Fur Seal A , 



~ America and at 



Group 



the extreme east 



of the hall the exhibit of reptiles 

 and amphibians. At the en- 

 trance is shown a family of fur 

 seals as it appears in one of the 

 seal rookeries in the Pribilof 

 Islands. During the breeding 



° ° A YOUNG SEAL OF THE FUR SEAL GROUP 



season the fur seals, from which 



is obtained the sealskin of commerce, congregate in their island rookeries in 



great numbers and have been so hunted by man that they are threatened 



with extinction. 



Grant's Grant's caribou inhabit the barren ground of the extreme 



Caribou western end of the Alaskan peninsula. The type specimen of 



Group this species is in the Museum. 



The mountain sheep inhabit the more inaccessible mountain regions 



of the West from the northern part of Mexico to the shores 

 g , G of the Arctic ocean. It is probable that they originated in 



the mountains of Central Asia and spread through Siberia 

 into the American continent. The geographic variation of the mountain 

 sheep of North America is shown on the section of a globe near the group. 

 [See Guide Leaflet No. 5.] 



