The Hamadryas Baboons are not entirely vegetable feeders, although they usually live on fruits and grain, or on buds and succulent stems; yet it appears to be true that they like insects now and then, and share them as delicacies. The old ones march about gravely, turning over stone after stone, but if there is a large stone which one cannot turn over, as many as can stand round it turn it with a will together, capsize it, and share the booty. The old males, who act as sentinels, are extremely watchful, and cry out with a peculiar note when there is danger; but this is only done when absolutely requisite, for silence is insisted on during their expeditions. Thus, when they plunder a garden in Abyssinia, they follow their leader without noise, and if an impudent young one makes a noise he receives a slap from the others to teach him silence and obedience. But as soon as they are aware that there is no danger, all show their joy by making as much noise as possible. The Hamadryas grows to the size of a large Pointer Dog, and measures rather more than four feet when standing erect, and about two feet and a half when sitting. The face is very long, naked, and of a dirty flesh-colour, with a ring of lighter tint round the eyes. The nostrils, as in the Dog, are separated by a slight furrow, and they open quite at the end of the snout, which projects slightly beyond the lip. The head, neck, shoulders, and all the fore parts of the body as far as the loins are covered with long shaggy hair; that on the hips, thighs, and legs is short, and contrasted with the former has the appearance of having been clipped, so that the whole animal bears some resemblance to a French Poodle. The hair of the back of the head and neck is upwards of a foot in length, and forms a long mane which falls back over the shoulders, and at a distance looks something like a full short cloak. The whiskers are broad and directed downwards so as to conceal the ears; their colour, as well as that of the fore part of the body, head, and mane, is a mixture of light grey and dusky colour, each hair being marked with numerous delicate rings of the colours. The short hair of the thighs and extremities is of a uniform colour of dusky brown, and a dark brown line passes down the middle of the back. The feet are rusty brown, and the hands are jet black. The tail is about one-half of the length of the body, and is carried drooping as in other Baboons; it is terminated by a tuft of long brown hair.