ADAPTATIONS 
dents may be put in the 
way of independent ob- 
servation along an ex- 
tremely interesting and 
attractive line of zodlog- 
ical study. 
%6. Adaptations for 
securing .food.— For the 
purpose of capture of 
their prey, some carniv- 
orous animals are pro- 
vided with strong claws, 
sharp teeth, hooked 
beaks, and other struc- 
tures familiar to us in 
the lion, tiger, dog, cat, 
owl, and eagle. 
eating mammals 
contrivances 
Insect- 
have 
especially 
Fie. 56.—Foot of the bald eagle, show- 
ing claws for seizing its prey. 
(CHAPMAN,) 
adapted for the catching of insects. 
125 
Fie. 55.—The brown pelican, showing gular 
sac. which it nses in catching and holding 
fishes that form its food, 
The 
ant-eater, for example, has a - 
curious, long sticky tongue 
which it thrusts forth from 
its cylindrical snout deep 
into the recesses of the ant- 
hill, bringing it out with its 
sticky surface covered with 
ants. Animals which feed on 
nuts are fitted with strong 
teeth or beaks for crack- 
ing them. Similar teeth are 
found in those fishes which 
feed on crabs, snails, or sea-ur- 
chins. Those mammals like 
the horse and cow, that 
feed on plants, have usually 
