The Nine-Banded Armadillo, (_Tatu novemcinctum_), of southern Texas and Arizona, and southward, is the only edentate found in the United States. Its total length, from nose to tail-tip, is about 26 inches, and it is about as large as an opossum. Its strangest feature is the horny shell, with 9 jointed bands in the middle, which Nature has designed for the animal’s protection. It lives in burrows in the earth, and in a wild state it feeds on a mixed diet of worms, ants, snails, beetles, grasshoppers and other insects. The Six-Banded Armadillo, (_Dasypus sexcinctus_), of South America, has a much stronger and more bony shell than the preceding species, but very similar habits. The Three-Banded Armadillo, (_Tolypeutes tricinctus_), is the most remarkable of all—and also the most difficult to obtain. It is able to convert itself into a round ball covered at all points by bony armor, and remarkably well protected from the teeth of predatory animals. [Illustration: GREAT ANT-EATER.] The Great Ant-Eater, (_Myrmecophaga jubata_).—This is a very remarkable animal, and usually is to be found alive in the Small-Mammal House. Its anatomical peculiarities are apparent at a glance. Its toothless jaws are enormously elongated, and taper to a rounded point, where the mouth opens as a narrow slit, scarcely large enough to admit the large end of a lead pencil. Its front claws are large and strong, for use in tearing open ant-hills and decayed logs; and the creature walks upon them as if club-footed. Its tail is long and thick, and bears a luxuriant brush, of coarse, wavy hair more than a foot long. The negroes of British Guiana gravely inform travellers that the Ant-Eater uses his bushy tail as a broom, with which he sweeps up ants in order to devour them wholesale. As may be inferred from the total absence of teeth, this strange creature lives chiefly upon crawling insects. In devouring the dreadful ants, which in a South American forest often make life a burden, it helps to preserve the balance of Nature. In captivity the food of this animal consists of milk, raw eggs and ground meat. In taking its food it thrusts out from four to eight inches of round, wormlike tongue, which contrary to many published statements, is not covered with sticky saliva. [Illustration: SIX-BANDED ARMADILLO.] The Tamandua, (_Tamandua tetradactyla_), is a smaller ant-eater than the preceding species, of tree-climbing habits, with a proportionately shorter head, no long hair on its tail, and extremely large front claws. It is found in Venezuela, the Guianas, Brazil, and in fact that greater portion of the region of tropical forests on this continent south of Mexico. Its tail is prehensile, or grasping, and in climbing is used almost constantly.