What animal does Circe turn Odysseus's men into?

Circe turns Odysseus's men into pigs. The transformation occurs on the island of Aeaea, where Circe lives as a powerful goddess and enchantress. She welcomes a group of sailors into her palace, then mixes a potion into their food and wine.

The magic changes the men into swine, although they retain their human minds. The surviving sailor Eurylochus avoids the palace and returns to warn Odysseus. Hermes then gives Odysseus the protective herb moly, which prevents Circe's spell from overpowering him.

When Circe's magic fails against Odysseus, he forces her to swear that she will not harm him. She restores his companions to human form, making them younger and stronger than before. The men remain on Aeaea for a year as Circe's guests. A common mix-up is to say that Circe turns Odysseus himself into a pig; in the Odyssey, Odysseus resists the spell, while his crew members are transformed.