22O 



ANIMAL BIOLOGY 



FIG. 401. SACRED MONKEY OF INDIA (Semnopithecus entellus) . x &. 



Monkeys, Apes, and Man. 



Study the figures (399, 400); 

 compare apes and man and ex- 

 plain each of the differences in 

 the following list : ( I ) feet, three 

 differences; (2) arms; (3) brain 

 case; (4) jaws; (5) canine 

 teeth ; (6) backbone ; (7) dis- 

 tance between the eyes. 



A hand, unlike a foot, has 

 one of the digits, called a 

 thumb, placed opposite the 

 other four digits that it may be 

 used in grasping. Two-handed 

 man and four-handed apes and 

 monkeys are usually placed in 

 one order, the Primates, or 



FIG - 4 2 - - LEMUR (Lemur Mon- 



goz). X xV Which digit bears a 



c iaw? 



