4 
THE LIFE OF MAMMALS 
watched. Presently a monkey discovers it, thrusts in his hand, 
and soon gets so busy and so much enjoys his feast that he 
will suffer himself to be caught sooner than forego the handful 
of sugar which he cannot pull out so long as his fist is closed. 
Precisely the same plan, with a cocoanut for a trap and rice 
for bait, is used to catch monkeys and other animals in the 
Far East. 
When captured old, capuchins are likely to mope, refuse 
food, and die; but the young become tame and interesting. 
They are hardy, and most of the organ grinders’ monkeys of 
both continents belong to this group and are mainly “‘ weepers,” 
whose fur is golden brown, with a blackish line extending 
backward from the nose to the shoulders, and the face and fore 
parts generally pale yellow. They are greatly attached to their 
masters and to any animal friends; and in Paraguay are 
usually brought up with a young dog on whose back they ride 
half the time. Their intelligence and quickness to learn is 
great ; for instance, they contrive, after the surprise of a 
failure or two, to open an egg and eat it without spilling a drop. 
But like most monkeys they are filled with a spirit of mischief 
and are expert thieves. An excellent anecdote was recorded 
by Professor Cope, who had two of these monkeys in his house 
in 1872, and had the temerity to call them “Jack and Jim, 
the sons of Cebide.” 
“Jack displays a thousand traits of monkey ingenuity. He is an ad- 
mirable catcher, seldom missing anything, from a large brush to a grain, 
using two hands or one. His cage door is fastened by two hooks, and these 
are kept in their places by nails driven in behind them. He generally 
finds means sooner or later of drawing out the nails, unhooking the hooks, 
and getting free. He then occupies himself in breaking up various objects 
and examining their interior appearances, no doubt in search of food. To 
prevent his escape, I fastened him by a leather strap to the slats of the cage, 
but he soon untied the knot, and then relieved himself of the strap by cut- 
ting and drawing out the threads which held the flaps for the buckle. He 
then used the strap in a novel way. He was accustomed to catch his food 
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