76 HOOFED ANIMALS 
hoofs, bounds upward as if propelled by steel springs, and 
flies forward for an astonishing distance. In Manitoba and 
a few other localities this remarkable gait has caused this 
animal to be called the Jumpinc Derr. Owing to the fact 
Copyright, 1900, N. Y. Zoological Society. 
MULE DEER WITH ANTLERS IN THE VELVET. 
that it lives in a dry climate and rarefied atmosphere, and 
subsists on very dry: foods, it is difficult to acclimatize it any- 
where outside of its own home. East of the Mississippi most 
Mule Deer die of gastro-enteritis. This species has not been 
successfully acclimatized anywhere east of the Great Plains. 
