because it was full of fear and misery.

In summer, man was exposed to the scorching rays of the
sun, and during the winter his children would freeze to death
in his arms. When such a creature hurt itself, (and hunting
animals are forever breaking their bones or spraining their
ankles) he had no one to take care of him and he must die a
horrible death.

Like many of the animals who fill the Zoo with their
strange noises, early man liked to jabber. That is to say, he
endlessly repeated the same unintelligible gibberish because it
pleased him to hear the sound of his voice. In due time he
learned that he could use this guttural noise to warn his fellow
beings whenever danger threatened and he gave certain little
shrieks which came to mean ``there is a tiger!'' or ``here come
five elephants.'' Then the others grunted something back at
him and their growl meant, ``I see them,'' or ``let us run away
and hide.'' And this was probably the origin of all language.

But, as I have said before, of these beginnings we know
so very little. Early man had no tools and he built himself
no houses. He lived and died and left no trace of his existence
except a few collar-bones and a few pieces of his skull.
These tell us that many thousands of years ago the world was
inhabited by certain mammals who were quite different from
all the other animals--who had probably developed from another
unknown ape-like animal which had learned to walk on
its hind-legs and use its fore-paws as hands--and who were
most probably connected with the creatures who happen to be