The Gorilla, (_Gorilla savagei_), of equatorial West Africa, is the largest and ugliest of the great apes, walks erect, and in form of body and limbs, it most resembles man. Its brain, however, is less man-like than that of the chimpanzee and orang-utan. It is very rarely seen in captivity. The only specimen which up to 1911 had reached America alive lived but five days after its arrival. Despite the fact that these creatures seldom live in captivity longer than a few months, they are always being sought by zoological gardens. The agents of the New York Zoological Society are constantly on the watch for an opportunity to procure and send hither a good specimen of this wonderful creature; and whenever one arrives, all persons interested are advised to see it _immediately_,—before it dies of sullenness, lack of exercise, and indigestion. The Orang-Utan is intellectually superior to the gorilla, and is equalled only by the chimpanzee. Unfortunately, as a rule, none of the great apes are long-lived in captivity, and in zoological gardens they come and go. For this reason, it is seldom that an adult specimen, 4 feet in height, and weighing 150 pounds, is seen in captivity. Among other apes, the Orang-Utan is readily recognized by its _brown skin, red hair and small ears_. In disposition this creature is naturally docile and affectionate. It is fond of the society of human beings, takes to training with wonderful readiness and success, and young specimens can easily be taught to wear clothes, sit at table, and eat with spoon and fork. In the summer of 1911, the daily open-air exhibition of _nine_ apes dining at 4 o’clock on an elevated platform in the large outside cage at the Primate House, will long be remembered by the crowds of visitors who saw it. Such exhibitions are entirely germane to the educational purposes of a zoological garden or park, for they illustrate the mentality of animals and their wonderful likeness to man, far more forcibly than the best printed statements. The north hall of the Primate House is specially intended for the anthropoid apes, and it is not likely that any lengthy periods will elapse during which it contains neither orang-utans nor chimpanzees. [Illustration: ORANG-UTAN.] The Chimpanzee, (_Anthropopithecus calvus_), of equatorial Africa from the west coast to the central lake region, is quite as common in captivity as the orang-utan. Both structurally and mentally this animal is very much like the orang-utan, and for keenness of intellect and susceptibility to training, it is second to none of the animals lower than man. A Chimpanzee is easily recognized by its _black hair and large ears_. There are two or three species.