FOOD AND FEEDING HABITS 15 



jaws, Init this is not true of toads eveiywliere. The 

 tree-toads (which are toads not frogs) have teeth on 

 the npper jaw, and some real tree-frogs {Dendro- 

 hatidce) have no teeth on either jaw. In the tailed 

 amphibians there are 

 usually teeth on both 

 jaws, but the siren 

 has a beak only, like 

 that of turtles and 

 some fishes. Tad- 

 poles of the frogs 

 and toads have simi- 

 lar beaks. In the 

 Caecilians there are 

 teeth on both jaws — 

 especially the lower. 



Food and Feeding 

 Habits 



In the grown-up 

 state, when not con- 

 fined, all amphibians 

 appear to be either 

 flesh -eaters or insect- 

 eaters. In confine- 

 ment many tailed 

 forms will eat bread 

 and milk, or bread 

 alone, and other 

 cooked forms of vee^e- ^^^, „ m ^, ,. , , • ., t ^ 



o Fig. 9. — Tootli ot labynnthodout, 



table food. But their natural size. 



