84 POPULAR OFFICIAL GUIDE. 
ORANG-UTAN. 
lengthy periods will elapse during which it contains neither 
orang-utans nor chimpanzees. 
The Chimpanzee, (Anthropopithecus calvus), of equatorial 
Africa from the west coast to the central lake region, is 
quite as common in captivity as the orang-utan. Both 
structurally and mentally this animal is very much like the 
orang-utan, and for keenness of intellect and susceptibility 
to training, it is second to none of the animals lower than 
man. A Chimpanzee is easily recognized by its black hair 
and large ears. There are two or three species. 
The Gibbon shows off to poor advantage in a cage, but in 
the tree-tops it is a wonderful creature. It is like a long- 
armed skeleton clothed with skin and hair, animated by the 
spirit of an Ariel. In its home in the jungles of Borneo and 
southeastern Asia, it dwells in hilly forests, and never 
descends to the earth. When attacked, it flees down-hill, if 
possible, and it seems actually to fly through the tree-tops. 
It boldly flings itself forward through space, grasps with its 
hands the first available branch, swings underneath, feet 
foremost, and after another flight presently catches with 
its feet, thus actually making revolutions as it goes. Its 
progress is so swift and so silent that successful pursuit is 
impossible to any enemy not provided with wings. 
This animal is naturally very timid, but does not hesitate 
to expose itself to mortal danger when its young are in 
