It is not, therefore, strange that at all seasons, and even when other animals are starving, the hairy armadillo is always fat and vigorous. In the desert it is diurnal; but where man appears it becomes more and more nocturnal, and in populous districts does not go abroad until long after dark. Yet when a district becomes thickly settled it increases in numbers; so readily does it adapt itself to new conditions. It is not to be wondered at that the gauchos, keen observers of nature as they are, should make this species the hero of many of their fables of the "Uncle Remus" type, representing it as a versatile creature, exceedingly fertile in expedients, and duping its sworn friend the fox in various ways, just as "Brer Rabbit" serves the fox in the North American fables. The hairy armadillo will, doubtless, long survive all the other armadillos, and on this account alone it will have an ever-increasing interest for the naturalist. I have elsewhere described how it captures mice; when preying on snakes it proceeds in another manner. A friend of mine, a careful observer, who was engaged in cattle-breeding amongst the stony sierras near Cape Corrientes, described to me an encounter he witnessed between an armadillo and a poisonous snake. While seated on the hillside one day he observed a snake, about twenty inches in length, lying coiled up on a stoue five or six yards beneath him. By-and-by, a hairy armadillo appeared trotting directly towards it. Apparently the snake perceived and feared its approach, for it quickly uncoiled itself and began gliding away. Instantly the armadillo rushed on to it, and, squatting close down, began swaying its body backward and forward with a regular sawing motion, thus lacerating its victim with the sharp, deep-cut edges of its bony covering. The snake struggled to free itself, biting savagely at its aggressor, for its head and neck were disengaged. Its bites made no impression, and very soon it dropped its head, and when its enemy drew off, it was dead and very much mangled. The armadillo at once began its meal, taking the tail in its mouth and slowly progressing towards the head; but when about a third of the snake still remained it seemed satisfied, and, leaving that portion, trotted away. Altogether, in its rapacious and varied habits this armadillo appears to have some points of resemblance with the hedgehog; and possibly, like the little European mammal it resembles, it is not harmed by the bite of venomous snakes.