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branches lower on the slope, and take another mighty swing down- 

 wards. They also ascend with great rapidity, swinging themselves 

 from tree to tree. When walking on the ground the Hoolock rests 

 on its hind feet alone, with the sole flat on the ground, and the 

 great toe widely separated from the other digits. The arms are 

 usually held upwards, sometimes horizontally, their great length 

 giving the animal a very peculiar aspect. Gibbons walk rather 



- 



FIG. 351. The Dun-coloured Gibbon (llylobatts entelloides). From Arehiv. du Museum, 

 vol. ii. pi. 29. 



quickly, with a waddling gait, and can easily be overtaken by men 

 when on the ground. The food of these Apes consists of fruit, 

 leaves, young shoots, spiders (of which they are very fond), insects, 

 birds' eggs, and almost certainly of young birds, if not of any birds 

 they can capture. Anderson found that small birds were killed 

 and devoured by Hoolocks in confinement with a method and 

 eagerness that showed this prey to be the natural food of the Apes. 

 The Hoolock drinks with its lips, putting its head down to the 

 water as Monkeys do. All species of Hylobates have a powerful 



