Page 52 - Beavers: Skilful Dam Constructors

incisor front teeth, they would become too large, would
apply pressure on the jaw and make it impossible for the
beaver to use its mouth.
How would the beaver gnaw trees and build dams in

this case? How would it build its home? Of course it
would not be able to do any of these things. It would not
even be able to feed because of the structure of its
mouth, so it would eventually starve to death.
Moreover, many organs other than its teeth are
especially created for the tasks they perform.
Transparent eyelids to protect its eyes when under

water as well as special mechanisms that close its ears
and nostrils to keep water out are special features which
beavers have. Besides these, a beaver has webbed back
feet and a stiff, flat tail, which help make the animal a
powerful swimmer. These are all advantageous features
a beaver has at birth.

You must have understood now why Karim has been
so amazed by his little friends.

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