The worship of animals has been known in many countries; but in Egypt it was maintained to a later pitch of civilisation than elsewhere, and the mixture of such a primitive system with more elevated beliefs seemed as strange to the Greek as it does to us. The original motive was a kinship of animals with man, much like that underlying the system of totems. Each place or tribe had its sacred species that was linked with the tribe; the life of the species was carefully preserved, excepting in the one example selected for worship, which after a given time was killed and sacramentally eaten by the tribe. This was certainly the case with the bull at Memphis and the ram at Thebes. That it was the whole species that was sacred, at one place or another, is shown by the penalties for killing any animal of the species, by the wholesale burial and even mummifying of every example, and by the plural form of the names of the gods later connected with the animals, Heru, hawks, Khnumu, rams, etc.
In the prehistoric times the serpent was sacred; figures of the coiled serpent were hung up in the house and worn as an amulet; similarly in historic times a figure of the agathodemon serpent was placed in a temple of Amenhotep III at Benha. In the first dynasty the serpent was figured in pottery, as a fender round the hearth. The hawk also appears in many predynastic figures, large and small, both worn on the person and carried as standards. The lion is found both in life-size temple figures, lesser objects of worship, and personal amulets. The scorpion was similarly honoured in the prehistoric ages.
It is difficult to separate now between animals which were worshipped quite independently, and those which were associated as emblems of anthropomorphic gods. Probably we shall be right in regarding both classes of animals as having been sacred at a remote time, and the connection with the human form as being subsequent. The ideas connected with the animals were those of their most prominent characteristics; hence it appears that it was for the sake of the character that each animal was worshipped, and not because of any fortuitous association with a tribe.
The baboon was regarded as the emblem of Tahuti, the god of wisdom; the serious expression and human ways of the large baboons are an obvious cause for their being regarded as the wisest of animals. Tahuti is represented as a baboon from the first dynasty down to late times; and four baboons were sacred in his temple at Hermopolis. These four baboons were often portrayed as adoring the sun; this idea is due to their habit of chattering at sunrise.
The lioness appears in the compound figures of the goddesses Sekhet, Bast, Mahes, and Tefnut. In the form of Sekhet the lioness is the destructive power of Ra, the sun: it is Sekhet who, in the legend, destroys mankind from Herakleopolis to Heliopolis at the bidding of Ra. The other lioness goddesses are probably likewise destructive or hunting deities. The lesser felidae also appear; the cheetah and serval are sacred to Hathor in Sinai; the small cats are sacred to Bast, especially at Speos Artemidos and Bubastis.
The bull was sacred in many places, and his worship underlay that of the human gods, who were said to be incarnated in him. The idea is that of the fighting power, as when the king is figured as a bull trampling on his enemies, and the reproductive power, as in the title of the self-renewing gods, 'bull of his mother.' The most renowned was the Hapi or Apis bull of Memphis, in whom Ptah was said to be incarnate, and who was Osirified and became the Osir-hapi. This appears to have originated the great Ptolemaic god Serapis, as certainly the mausoleum of the bulls was the Serapeum of the Greeks. Another bull of a more massive breed was the Ur-mer or Mnevis of Heliopolis, in whom Ra was incarnate. A third bull was Bakh or Bakis of Hermonthis the incarnation of Mentu. And a fourth bull, Ka-nub or Kanobos, was worshipped at the city of that name. The cow was identified with Hathor, who appears with cow's ears and horns, and who is probably the cow-goddess Ashtaroth or Istar of Asia. Isis, as identified with Hathor, is also joined in this connection.
The ram was also worshipped as a procreative god; at Mendes in the Delta identified with Osiris, at Herakleopolis identified with Hershefi, at Thebes as Amon, and at the cataract as Khnumu the creator. The association of the ram with Amon was strongly held by the Ethiopians; and in the Greek tale of Nektanebo, the last Pharaoh, having by magic visited Olympias and become the father of Alexander, he came as the incarnation of Amon wearing the ram's skin.
The hippopotamus was the goddess Ta-urt, 'the great one,' the patroness of pregnancy, who is never shown in any other form. Rarely this animal appears as the emblem of the god Set.