Ants yawn, sleep, play, work, practice gymnastics, and are fond of pets, such as small beetles, crickets, and cocci, which they entertain as guests in their homes.
Indeed, ants are social, civilized, intelligent citizens of successfully governed cities. Even babies are claimed by the state. Their government is a happy democracy where the queen is "mother" but not ruler, and where the females have all the power. The queen is highly honored and at death is buried with magnificence. In her devotion to her lot in life she pulls off her glittering wings and becomes a willing prisoner in the best room of a house of many apartments. Here she is cared for by devoted followers who polish her eggs, carry them upward to the warmth of the sun in daytime, and back to the depths of the habitation to protect them from the chill of night. These eggs are so small as scarcely to be seen by the eye alone. They are bright and smooth, without any division. It is very strange, but these eggs will not develop into larvæ unless carefully nursed. This is effected by licking the surface of the eggs. Under the influence of this process they mature and produce larvæ. The larvæ are fed, like young birds, from the mouths of the nurses. When grown they spin cocoons and at the proper time the nurses help them out by biting the cases. The next thing the nurses do is to help them take off their little membranous shirts. This is done very gently. The youngsters are then washed, brushed, and fed, after which the teachers educate them as to their proper duties.
It is astonishing how many occupations are followed by these little busy-bodies whose size and weakness are made up for by their swiftness, their fineness of touch, the number of their eyes and a powerful acid which they use in self-defense. Their jaws are so much like teeth that they serve for cutting, while their antennæ are useful for measurement, and their front feet serve as trowels with which to mix and spread mortar. Ants may be said to have the following occupations: Housewives, nurses, teachers, spinners, menials, marauders, soldiers, undertakers, hunters, gardeners, agriculturalists, architects, sculptors, road makers, mineralogists, and gold miners.
Ants keep cows—the aphides—for which they sometimes build stables and place in separate stalls from the cocci, which they also use. They make granaries where they store ant rice. If the grain begins to sprout they are wise enough to cut off the sprout. If it gets wet they have often been seen carrying it up to the sunshine to dry and thus prevent sprouting. The honey-ant is herself a storehouse of food in case of famine. This kind of ant has a distension of the abdomen in which honey is stored by the workers for cases of need. They inject the honey into the mouth of the ant. When it is needed she forces it up to her lips by means of the muscles of the abdomen. It is said that the Mexicans like to culture honey ants and eat the honey themselves.
The leaf-cutting ant is the gardener. It is devoted to growing mushrooms or at least a kind of fungi of which it is fond. This accounts for the beds of leaves it carries to its nest, on which the fungi develop.
The Roman naturalist, Pliny, gives an account of some ants in India which extract gold from mines during the winter. In the summer, when they retire to their holes to escape the heat, the people steal their gold. McCook has found that we have ants who are mineralogists, as they cover their hill with small stones, bits of fossils and minerals, for which they go down like miners more than a yard deep into the earth.
That some kinds of ants are architects has been clearly proven, for an observer saw an ant architect order his workmen to alter a defective arch, which they did, apparently to suit his views of how arches should be constructed!
The ants who act as sculptors work in wood. The red ants of the forest build storied houses in trees with pillars for support. There is a little brown ant which makes a house forty stories high; half the rooms are below ground. There are pillars, buttresses, galleries, and various rooms with arched roofs. This ant works in clay. If her material becomes too dry she is compelled to wait for moisture.
The blind ant is a remarkable builder. She makes long galleries above ground. She does not use cement as some ants do, so she builds rapidly and her structure is flimsy.
The Saiiva ants of Brazil are skillful masons. They construct chambers as large as a man's head that have immense domes, and outlets seventy yards long. The Brazilians say that the Indians, in cases of wounds, when it was necessary to close them as with stitching, used the jaws of the Saiiva ant. The ant was seized by the body and placed so that the mandibles were one on each side of the cut. Then, when pressed against the flesh, the ant would close the mandibles and unite the two sides of the cut as firmly as a good stitch would do it. A quick twist of the ant's body separated it from the head. After a few days the heads were removed with a knife and the operation was complete.