According to this theory the god--the full-grown god in human shape, dwelling apart and beyond the earth--did not come first, but was a late and more finished product of evolution. He grew up by degrees and out of the preceding animal-worships and totem-systems. And this theory is much supported and corroborated by the fact that in a vast number of early cults the gods are represented by human figures with animal heads. The Egyptian religion was full of such divinities--the jackal-headed Anubis, the ram-headed Ammon, the bull-fronted Osiris, or Muth, queen of darkness, clad in a vulture's skin; Minos and the Minotaur in Crete; in Greece, Athena with an owl's head, or Herakles masked in the hide and jaws of a monstrous lion. What could be more obvious than that, following on the tribal worship of any totem-animal, the priest or medicine-man or actual king in leading the magic ritual should don the skin and head of that animal, and wear the same as a kind of mask--this partly in order to appear to the people as the true representative of the totem, and partly also in order to obtain from the skin the magic virtues and mana of the beast, which he could then duly impart to the crowd? Zeus, it must be remembered, wears the aegis, or goat-skin--said to be the hide of the goat Amaltheia who suckled him in his infancy; there are a number of legends which connected the Arcadian Artemis with the worship of the bear, Apollo with the wolf, and so forth. And, most curious as showing similarity of rites between the Old and New Worlds, there are found plenty of examples of the wearing of beast-masks in religious processions among the native tribes of both North and South America. In the Atlas of Spix and Martius (who travelled together in the Amazonian forests about 1820) there is an understanding and characteristic picture of the men (and some women) of the tribe of the Tecunas moving in procession through the woods mostly naked, except for wearing animal heads and masks--the masks representing Cranes of various kinds, Ducks, the Opossum, the Jaguar, the Parrot, etc., probably symbolic of their respective clans.