This wonderful height is chiefly due to the great length of the neck. Yet there are only seven _vertebræ_, or joints of the spine, in that part of the body, just as there are in our own necks. But then each of these joints may be as much as a foot long! When the animal is hungry, its height is of very great use to it, enabling it to feed upon the leaves of trees which do not throw out branches near the ground. And in captivity, of course, its manger has to be put quite close to the roof of its stable. Strange to say, the giraffe plucks each leaf separately by means of its tongue, which is very long indeed and very slender, and is prehensile at the tip, like the tail of a spider-monkey. So it can be coiled round the stem of a leaf in order to pull it from the branch. And sometimes at the zoo you may see a giraffe snatch flowers out of ladies' hats and bonnets by means of this curious tongue. If a giraffe wants to feed upon grass instead of leaves, it straddles its front legs very widely apart, and then bends its long neck down between them. And it does just the same when it drinks. The giraffe is a fast runner, and a horse must be very swift to overtake it. It runs in a most singular manner, with "a queer camel-like gallop," and throwing out the hind legs with a semicircular movement, while its long neck goes rocking backward and forward like that of a toy donkey, and the long tail switches up and down as regularly as if it were moved by clockwork. So a long line of giraffes all running away together must look very odd indeed. You would think that giraffes would be very easily seen, even in the forest, wouldn't you? Yet every hunter tells us that as long as they are standing still it is almost impossible to detect them, since they look just like the stems and foliage of the trees, with the sunlight shining in patches between the leaves! Giraffes are found in various parts of Africa, south of the Sahara, and two different varieties are known, that from South Africa being much the darker of the two, and having the spots much larger and closer together. A third kind, with five of the so-called horns on the head, has been recorded by Sir Harry Johnston. THE OKAPI A still more remarkable discovery, made in the same forest district by the same famous explorer, was that of the okapi, which is a very singular animal. Perhaps we can best describe it to you by saying that it is something like a giraffe, and something like an antelope, and something like a zebra, and something like an ox! The color of its coat is like that of a very red cow, there are zebra-like stripes on the fore and hind quarters, and the legs are cream-colored, while on the skull are faint traces of horns like those of the giraffe. We do not as yet know much about the habits of this wonderful animal, except that it lives in the thickest parts of the forest, seems to go about in pairs, and to feed wholly on leaves and twigs. THE DEER