ADAPTATIONS 197 
broad chisel-like incisor teeth for cutting off the foliage, 
and teeth of very similar form are developed in the dif- 
ferent groups of plant- 
eating fishes. Molar 
teeth are found when it 
oe geen 
Se 
Fie. 58.—Scorpion, showing the special devel- 
opment of certain mouth parts (the maxil- 
lary palpi) as pincer-like organs for grasp- 
ing prey. At the posterior tip of the body 
is the poisonous sting. 
Fia. 59.—Head of mosquito (fe- 
male), showing the piercing 
needle-like month parts which 
compore the ‘‘ bill.” 
is necessary that the food should be crushed or chewed, 
and the sharp canine teeth go with a flesh diet. The 
long neck of the giraffe 
(Fig. 57) enables it to 
browse on the foliage of 
trees. 
Insects like the leaf- 
beetles and the grasshop- 
pers, that feed on the 
i f plants, have a 
foliage o 3 i ? Fie. 60.—The praying-horse (Mantis) with 
pair of jaws, broad but fore legs developed as grasping organs. 
