Pond Life 
as their tails would not be wanted to 
swim with, they would most likely be 
gradually lost, and the other changes 
would slowly and gradually be made 
until the frogs appeared as we know 
them now. The frogs, though they are 
now small and insignificant, must at one 
time have been quite important ; and 
among the various frogs living at the 
present day in different parts of the 
world, we find very many most curious 
ways of living under all sorts of varying 
circumstances. Some climb trees, others 
carry their eggs on their own backs 
until they hatch. 
The pond also furnishes us with 
examples of the changes undergone by 
insects. If you poke about witha small- 
meshed net amongst the weeds and mud 
of any pond you will soon catch a 
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