IPOSIINKOIN (Cle Is IILONsyA INS 
attack made byan orang upon a tree,consisting of showers 
of hard fruits with which it assiduously pelted its pur- 
suers. Structurally it may be noted that the orang 
differs from the other anthropoid apes in its small and 
delicately shaped ears, much like those of the gorilla, 
in the small size of, and absence of a nail upon, the great 
toe. It is curious, too, that this ape has its femur loose 
in the socket by reason of the absence of a ligament 
binding that bone to the hip bone. This may account 
for its cautious and deliberate movements when moving 
from branch to branch of its native trees. This ape 
builds a kind of nest in trees, which is not a permanent 
dwelling place, but merely a place of temporary sojourn. 
It is built of a number of branches laid together and 
covered with leaves, and is about a yard and a half 
across. 
THE HOOLOcK 
The Hoolock and its immediate relatives, the other 
members of the genus Hylobates, or gibbons, stand a 
little below the chimpanzee, the gorilla, and the orang, 
which complete the list of living anthropoid apes. 
In intelligence they are not inferior at all; indeed they 
seem to possess the greater sharpness often incidental 
to small size. But structurally the gibbons form a 
link, not very perfect, with the lower standing Catarrhine 
monkeys. 
To begin with, there are in these anthropoids at least 
traces of the ischial callosities so characteristic of the 
Old World monkeys. The canine teeth, large enough 
it is true in the old male gorilla, are still larger propor: 
tionately in the Hoolock, and thus more closely approach 
such teeth in lower mammals. The brain is rather 
simpler, but perhaps this is merely a matter of smaller 
size than of affinity to the macaques and such like, 
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