184 
NATURAL HISTORY. 
“ They are fond of teasing, and pull the tails of Dogs and Cats, snatch the feathers out of Hens 
and Ducks, and even tease Horses which are tied up close to them ; they also pull their bridles, and 
are all the more pleased the more worried or frightened the animal becomes. 
“ Only the Indians make use of the skin, and therefore hunt the Cai down with bow and arrow. 
The whites prize him most highly in captivity.” 
Some of these little Monkeys really appear to reason, and are very clever. Hengger states that 
when he first gave eggs to his Monkeys they smashed them, and thus lost much of their contents ; 
afterwards they gently hit one end against some hard body, and picked off the bits of shell with their 
fingers. After cutting themselves only once with a sharp tool they would not touch it again, or would 
handle it with the greatest care. Lumps of sugar were often given them wrapped up in paper, and 
THE CAI. 
Hengger sometimes put a live wasp in the paper, so that in hastily unfolding it they got stung. After 
this had happened once they always first held the packet to their ears, to detect any movement within. 
This breaking of the egg in a proper manner is as interesting as two well-known facts, one oi 
which may be observed by anybody in the habits of American and other Monkeys. Sometimes a 
little Monkey has a nut given him, and he is not strong enough to crack it. He \* ill look up into your 
face with a meaning glimmer of his eyes, and hand you the nut again. Crack it for lnm, and he 
receives it as a matter of course. Formerly one of the large Monkeys in the Zoological Gardens had 
weak teeth, and he used to break open the nuts with a stone, and Mr. Darwin was assured by the 
keepers that this animal, after using the stone, hid it in the straw, and would not let any other Monkey 
touch it. 
Kengger taught one to open palm-nuts by breaking them with a stone, and so satisfied was it with 
its performance, that it soon began to experiment on other kinds of nuts, and then it began upon boxes. 
It also crushed off with blows of a stone the soft rind of a fruit that had a disagreeable flavour, in 
order to get at the luscious food within. 
