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GNUS AND DUIKERS 



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watchful, alert, and, when grazing, guarded by sentries. 

 usually old bucks, with eyes as keen as those of a hawk. 

 These sentinels often post themselves on an anthill in 

 such excellent positions as to command the plain for a 

 mile or more. Hunters dislike this animal, for it seems 

 to be the self-appointed watchman of the grazing ground, 



The Head of an Adult Brindled (inu (Connochwtes taurinm) 

 and its Calf, showing the horns growing out as spikes ; they 

 subsequently assume the peculiar curves characteristic of 

 the adult. (Natural History Museum.) 



and its cry of warning will send various kinds of beasts, 

 especially zebras, galloping over the plain. The harte- 

 beest obtained its name from the early Dutch settlers in 

 South Africa because it is so hardy, and so tolerant of 

 severe injury. Hartebeest are common throughout the 

 African Continent and they vary in form, colour and 

 shape of the horns, according to age and sex. In 



