34 THE MAN-LIKE APES 1 



nostrils have a narrow partition and look down- 

 wards; and, furthermore, their arms are always 

 longer than their legs, the difference being some- 

 times greater and sometimes less ; so that if the 

 four were arranged in the order of the length of 

 their arms in proportion to that of their legs, we 

 should have this series Orang (1-f- 1), Gibbon 

 (11 1), Gorilla' (li 1), Chimpanzee (l r V 1). 

 In all, the fore limbs are terminated by hands, 

 provided with longer or shorter thumbs ; while 

 the great toe of the foot, always smaller than in 

 Man, is far more movable than in him and can be 

 opposed, like a thumb, to the rest of the foot. 

 None of these apes have tails, and none of them 

 possess the cheek-pouches common among mon- 

 keys. Finally, they are all inhabitants of the old 

 world. 



The Gibbons are the smallest, slenderest, and 

 longest-limbed of the man-like apes : their arms 

 are longer in proportion to their bodies than those 

 of any of the other man-like Apes, so that they 

 can touch the ground when erect; their hands 

 are longer than their feet, and they are the only 

 Anthropoids which possess callosities like the lower 

 monkeys. They are variously coloured. The 

 Orangs have arms which reach to the ankles in 

 the erect position of the animal ; their thumbs 

 and great toes are very short, and their feet are 

 longer than their hands. They are covered with 

 reddish brown hair, and the sides of the face, in 



