APES 
ing over and over, turning somersaults, swinging from place 
to place, standing erect and hammering with his hands 
after the fashion of a boxer ; screaming when hurt or 
offended, and making friends as soon as the fit is over, but, 
nevertheless, revengeful at the moment, inflicting sharp 
bites on the instant; fearfully jealous of a rival, and, when 
INTRODUCTION. 
enraged, rushes to attack with great fury, but, if defeated, 
beats and knocks himself about. 
The chimpanzee looks intently on any new object and 
examines, apparently with great care and minuteness, 
everything placed within reach ; soon, however, he, like a 
spoilt child, discards the new things and looks anxiously for 
something else to amuse him, 
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