52 HOOFED ANIMALS 
inches may fairly be considered large. The female has no 
horns. 
The colors of this animal are usually two, consisting of a 
cloak of light yellowish-brown thrown over the back and neck 
of an otherwise white animal. On the throat the brown is 
laid on in a curious collar-like pattern, and the adult males 
usually have a wash of black on their cheeks. The ears are 
very shapely, and from the neck an erect mane rises from 4 
to 5 inches in length. The legs are exceedingly trim and 
delicately formed, and the erect horns and high pose of the 
head give the animal a very jaunty appearance. 
In running it has three very distinct gaits. When fleeing 
from danger, it carries its head low, like a running sheep, and 
gallops by long leaps; when showing off, it holds its head as 
high as possible, and trots forward with stiff legs and long 
strides, like German soldiers doing the goose-step. Occa- 
sionally, it gallops with high head, by stiff-legged leaps, like 
the mule deer. 
In captivity the Prong-Horn is always affectionate, trust- 
ful and very fond of being noticed; but the bucks soon be- 
came too playful with their sharp horns, and push their human 
friends about until the play becomes more dangerous than 
amusing. ‘They readily come at call, and at times become 
very playful with each other. They cannot live on the rich, 
green grasses of the country east of the Great Plains, and are 
very difficult to keep in captivity. At the New York Zoo- 
logical Park it has been found that they survive and breed 
only when kept in a paved corral, and fed on rolled oats, 
clover hay and a very limited amount of fresh grass. Those 
