Two fairly distinct forms of swine occur in the lake-dwellings. The first is the so-called turbary pig (_Sus scrofa palustris_). This is a small form with comparatively long legs. It differs markedly from the wild boar, and was probably imported already domesticated. Being more or less left to feed and shift for itself, it may well have declined in size from its primitive oriental ancestors. Remains of the larger European wild boar (_Sus scrofa ferus L._) also occur from the beginning as products of the hunt. But during the Bronze period domesticated descendants of this variety grow numerous, and are crossed with the smaller turbary pig. "The domestic sheep," says Brehm, "is a quiet, gentle, patient, simple, will-less, cowardly, wearisome animal. It has no character. It understands and learns nothing; is incapable of helping itself."[60] It is certainly absolutely dependent upon man for guidance and protection. This lies partly in its inherited nature and original surroundings, but suggests long domestication. Like the goat, it is originally a mountain form, but adapts itself readily to the dry herbage of the steppe. It is not a native of central Europe but introduced. It is much rarer than the goat in the oldest lake-dwellings, but gradually becomes more abundant, especially in the Bronze period. The turbary sheep (_Ovis aries palustris_) is very small, with slender legs, long narrow skull, and bones somewhat like those of the goat. It was certainly not developed in Switzerland, and before it arrived there it had apparently been much modified by conditions of life or by crossing. Its anatomical characteristics are made up of at least three wild forms. The first of these is the goat-like maned sheep (_Ovis tragelaphus_) ranging over the mountains of northern Africa, extending across into Abyssinia. This form seems to have been domesticated in Egypt before the middle of the fourth millennium. At a much later date, in Homeric times, herds of sheep of a similar form were kept in Greece. It was much larger than the turbary form. The arkal (_Ovis arkal_) is the steppe sheep of central and western Asia. It is the ancestor of the oriental and African fat-tailed sheep. The western Asiatic forms seem to have developed the fine wool at the expense of the coarse hair, like that of the goat and of many other forms. A third form is the Moufflon, of the mountains around the Mediterranean and of its larger islands--here probably introduced. Similar forms appear in Europe during the Bronze period.