If you go to look at the llamas in a zoo, we would advise you not to stand too near the bars of their enclosure, for they have a habit of spitting straight into one's face! When they are used for riding they will often turn their heads round and spit at their rider, just to show that they are getting tired. And if once they lie down no amount of persuasion or even of beating will make them get up again, until they consider that they have had a proper rest! ZEBRAS There are three different kinds of these beautiful animals. The largest and finest is known as Grévy's zebra, which is found in the mountains of Somaliland. It has many more stripes than the other two, while the ground color is quite white. The smallest is the mountain zebra, which is only about as big as a good-sized pony, and has its legs striped right down to the hoofs. This is now a very scarce animal, being only found in one or two mountainous districts in South Africa, where no one is allowed to interfere with it. And between the two is the Burchell's zebra, which is about as large as a small horse, and has its legs white, with only a very few markings. This animal is quite common in many parts of the South African plains, and has often been domesticated, and taught to draw carriages and carts. Indeed, in some districts of Southern Africa, a coach drawn by a team of zebras instead of horses is not a very uncommon sight. You would think that an animal, colored like the zebra would be very easily seen, even by night, wouldn't you? But strange to say, these creatures are almost invisible from a distance of even a few yards. Indeed, hunters say that they have often been so close to a zebra at night that they could hear him breathing, yet have been quite unable to see him! This seems to be due to his stripes, for it has been found that while a pony can be easily seen from forty or fifty yards away on a moonlight night, it at once becomes invisible if it is clothed with ribbons in such a way as to resemble the stripes of the zebra! Zebras are generally found in herds, and they have a curious habit of traveling about in company with a number of brindled gnus and ostriches, which all seem to be as friendly as possible together. THE QUAGGA The quagga, which became extinct some time ago, never had a very extended range, but once it existed in great numbers on all the upland plains of Cape Colony to the west of the Kei River, and in the open treeless country lying between the Orange and Vaal rivers. North of the Vaal it appears to have been unknown.