THE CAT 297 
form a narrow slit ; the pupil of the Dog’s eye is always 
round. Both have very keen sight, and rely on it in cap- 
turing prey. 
The tongue of the Cat is rough and hard, that of 
the Dog smooth and soft. 
The sense of smell in the two animals is very 
different. The Cat relies on its keen sight for finding its 
food, whereas the Dog’s sense of smell enables it to follow 
its quarry by scent. The nose of the Dog, moreover, is 
much more moist than that of the Cat. 
The limbs of the Cat, as we have seen, are bent 
and specially adapted for enabling the animal to crouch 
along the ground and reach its victim by an immense 
spring. Those of the Dog are much stronger and compara- 
tively straight. In both cases the limbs end in the same 
number of toes, each of which is furnished with a claw. 
But whereas the Uat’s claws are retractile, sharp, and suited 
for catching and holding its prey, those of the Dog are 
blunt and cannot be retracted: they are, in fact, suited for 
scratching. In both cases the under surface of the feet are 
provided with pads. 
The body of the Cat is long and slender ; that of the 
Dog longer and more robust, with a wide deep chest which 
affords greater lung power and thus fits the animal for the 
chase. 
The method of capturing prey is different in each 
case. The Cat stealthily approaches its victim or les in 
_ wait for it, and trusts for its capture to a swift rush ora 
long powerful spring. The Dog, on the other hand, runs 
its victim down, relying on its own speed and endurance 
and its keen sense of smell. Then, again, the Cat is dis- 
tinguished by her slow and deliberate way of eating; whereas 
the Dog bolts his food with great rapidity. 
