Richard Lydekker, 1911 Encyclopædia Britannica, Volume 17… (1911)
“ Like most other monkeys, macaques go about in large troops, each headed by an old male. They feed on seeds, fruits, insects, lizards, &c.; and while some of the species are largely terrestrial, the Barbary ape is wholly so. Docile and easily tamed when young, old males of many of the species become exceedingly morose and savage in captivity. ”
