The Alaskan brown bears in captivity are sanguine, courageous, peaceful and reliable, but in the wilds they are aggressive and dangerous.
The grizzlies are nervous, keen, cautious, and seldom wantonly aggressive.
The European brown bears are sanguine, optimistic and good- natured.
The American black bears are sanguine and quiet, but very treacherous.
The sloth bears of India are nervous or hysterical, and uncertain.
The Malay sun bears are hysterical, aggressive and evil-tempered.
The Japanese black bears are nervous, cowardly and aggressive.
To those who form and maintain large collections of bears, involving much companionship in dens, it is necessary to keep a watchful eye on the temperament chart.
THE DEER. In our Zoological Park establishment there is no collection in which both the collective and the individual equation is more troublesome than the deer family. In their management, as with apes, monkeys and bears, it is necessary to take into account the temperament not only of the species, but also of each animal; and there are times when this necessity bears hard upon human nerves. The proneness of captive deer to maim and to kill themselves and each other calls for the utmost vigilance, and for heroic endurance on the part of the deer keeper.
Even when a deer species has a fairly good record for common sense, an individual may "go crazy" the instant a slightly new situation arises. We have seen barasingha deer penned up between shock-absorbing bales of hay seriously try to jump straight up through a roof skylight nine feet from the floor. We have seen park-bred axis deer break their own necks against wire fences, with 100 per cent of stupidity.