WILD ANIMALS IN CAPTIVITY 
in which it succeeded admirably; the same thing has 
happened with pure-bred Esquimaux dogs. 
This reminds me of another instance of the develop- 
ment of the voice by domestication, in the fact that no 
wild jungle fowl ever utters the fine loud crow of our 
domestic code, the origin of which, there can be no doubt, 
was the jungle fowl of India. 
There are several species of wild dogs, such as the Cape 
hunting dog {Lycaon pictus), the Bush dog {Icticyon mnati- 
the Bed wolf and Ganis primwvus ; 
but I do not consider any of the foregoing in any way 
connected with the breeds of our domestic races or 
varieties ; at the same time, I may venture to suggest 
that animals may have existed who contributed to the 
production of some of the varieties of our domestic dogs 
and who have been absorbed or become extinct. 
The different breeds of dogs do not afford a greater 
difficulty in accounting for their existence than is offered 
by the different breeds of pigeons, or the extraordinary 
varieties of breeds of domestic poultry. 
The male wolf, when confined with the female who has 
young, appears to take an active share in rearing the young 
ones. It has been found that directly the young wolves 
begin to run about, the male, soon after feeding, casts up 
from his stomach a considerable portion of his half-digested 
meal, which the cubs eagerly devour. It is remarkable 
to find that, upon the male being removed from the 
female and young, the female immediately commences to 
do the same thing, namely, cast up a large portion of her 
half digested food for the cubs. 
You may take two of the most remarkable breeds of 
domestic dogs, as unlike each other as possible, and by 
crossing them the probability is that the mongrel off- 
spring will resemble the dingo character, or what they 
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