Amphibians The Tree-Frog 
surfaces, even to glass; they thus cling to tree trunks. 
The tree-frogs take in air and breathe by means of the 
rapid pulsation of the throat membrane. The 
nostrils are two tiny holes on either side of the tip of 
the snout. The ears are a little below and just 
behind the eyes, and are in the form of a circular slit. 
The tongue is like that of other frogs, hinged to the 
front of the lower jaw; it is sticky, and can be thrust 
far out to capture insects, of which the tree-frogs eat 
many. 
The eggs of the spring peepers are laid in ponds 
during April; each egg is at the center of a little 
globe of jelly, which is fastened securely to stones or 
to water plants. 
The tadpoles are small and delicate, and differ 
from those of other frogs in that they often leave the 
water while yet the tail is quite long. In the winter 
the tree-frogs sleep safely hidden in moss and leaves, 
but awaken to give us the earliest news of spring. 
HOUSE 
Takeasmall aquarium jar and place in it sphagnum 
moss, or other loose moss. This should be kept wet, 
but not allowed to mould. Bits of small branches 
covered with lichen may be placed in the cage for the 
froglets to climb upon. The moss should be thor- 
oughly washed occasionally. 
FOOD 
All peepers like flies the best of anything. Catch 
these in a wire-meshed trap and partially drown them 
and then empty the contents of the trap into the 
peepers’ cage. Peepers also like meal worms and 
other small worms and insects. They should be . 
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