Argonautica only defended by birds. They fight off the birds and then chance upon four survivors of a shipwreck. These are the four sons of the exiled Greek hero, Phrixus, and they are also grandsons of Aetes, king of Colchis. Jason welcomes them as god-sent allies in his quest for the Golden Fleece. Approaching Colchis, the Argonauts see the eagle of Zeus flying to and from the Caucasus mountains, where it feeds on the liver of Prometheus. It glides through the air as large as another ship, disturbing the Argo's sails as it passes overhead. Soon after, the heroes enter the
Ancient Greek religion quest for the Golden Fleece and Theseus and the Minotaur. Many species existed in Greek mythology. Chief among these were the gods and humans, though the Titans (who predated the Olympian gods) also frequently appeared in Greek myths. Lesser species included the half-man-half-horse centaurs, the nature based nymphs (tree nymphs were dryads, sea nymphs were Nereids) and the half man, half goat satyrs. Some creatures in Greek mythology were monstrous, such as the one-eyed giant Cyclopes, the sea beast Scylla, whirlpool Charybdis, Gorgons, and the half-man, half-bull Minotaur. There was not a set Greek cosmogony, or creation myth. Different religious