no doubt there is a great deal.

But it is with the language of wild animals that we are most
concerned. As already pointed out, wild creatures, other than
song-birds, do not care to say much, because of the danger of
attracting enemies that will exterminate them. Herein lies the
extreme difficulty of ascertaining how wild beasts communicate.
In the Animallai Hills of southern India I hunted constantly for
many weeks through forests actually teeming with big game. There
were herds upon herds of elephants, gaur, axis deer, sambar deer,
monkeys by the hundred, and a good sprinkling of bears, wild hogs
and tigers.

We saw hundreds upon hundreds of animals; but with the exception
of the big black monkeys that used to swear at us, I can almost
count upon my fingers the whole number of times that we heard
animals raise their voices to communicate with each other.

Ape Voices. Naturally it is of interest to know something of the
voices of the animals that physically and mentally stand nearest
to man.

The wild gorilla has a voice almost equal to that of the
chimpanzee, but in captivity he rarely utters any vocal sound
other than a shriek, or scream.

The baby orang-utan either whines or shrieks like a human child.
The half-grown or adult orang when profoundly excited bellows or
roars, in a deep bass voice. Usually, however, it is a
persistently silent animal.