Penny's "John Gorilla" was a notable exception, as will appear in
Chapter IX.

The orang-utan is sanguine, optimistic and cheerful, a good
boarder, affectionate toward his keepers, and friendly toward
strangers. He eats well, enjoys life, lives long, and is well
liked by everybody.

Except when quite young, the chimpanzee is either nervous or
hysterical. After six years of age it is irritable and difficult
to manage. After seven years of age (puberty) it is rough,
domineering and dangerous. The male is given to shouting, yelling,
shrieking and roaring, and when quite angry rages like a demon. I
know of no wild animal that is more dangerous per pound than a
male chimpanzee over eight years of age. When young they do
wonders in trained performances, but when they reach maturity,
grow big of arm and shoulder, and masterfully strong, they quickly
become conscious of their strength. It is then that performing
chimpanzees become unruly, fly into sudden fits of temper, their
back hair bristles up, they stamp violently, and sometimes leap
into a terrorized orchestra. Next in order, they are retired
willy-nilly from the stage, and are offered for sale to zoological
parks and gardens having facilities for confinement and control.

The baboons are characteristically fierce and aggressive, and in a
wild state they live in troops, or even in herds of hundreds.
Being armed with powerful canine teeth and wolf-like jaws, they
are formidable antagonists, and other animals do not dare to
attack them. It is because of their natural weapons, their
readiness to fight like fiends, and their combined agility and