Transformation Myths
When Gods Changed Mortals Forever
Transformation — metamorphosis — is one of the defining features of Greek mythology. Gods could change mortals into animals, plants, stones, or stars, and these transformations were usually permanent, serving as explanations for natural phenomena or as punishments for transgression.
Arachne was a mortal weaver who boasted she was more skilled than Athena. When they competed, Arachne's tapestry was technically flawless but depicted the gods' worst behavior — their rapes, deceptions, and cruelties. Athena, unable to find a flaw in the work and enraged by its content, destroyed the tapestry and beat Arachne. When Arachne tried to hang herself, Athena transformed her into a spider, condemned to weave forever. Daphne became a laurel tree to escape Apollo's pursuit. Narcissus wasted away staring at his reflection until he became the flower that bears his name. Actaeon was transformed into a stag by Artemis after accidentally seeing her bathing, and was torn apart by his own hunting dogs who no longer recognized him. Callisto, a follower of Artemis, was seduced by Zeus and transformed into a bear by either Hera or Artemis. She nearly killed by her own son Arcas before Zeus placed them both in the sky as the constellations Ursa Major and Ursa Minor.
Why gods transformed people: five patterns
The changes in these stories are not random. Most fall into a handful of recognisable types, and spotting the type usually tells you what the story is for.
- Punishment. Lycaon, king of Arcadia, served Zeus human flesh to test whether his guest was truly a god; Ovid has Zeus turn him into a wolf whose bristling grey coat and savage eyes still show the man he was. Arachne belongs here too, as do Odysseus' crew, whom Circe turned into pigs in Odyssey 10, though they kept human minds inside the animal bodies.
- Escape or rescue. Daphne's laurel is the famous case, but the same thing happens to the nymph Syrinx, who became the marsh reeds Pan later cut into his pipes, and to Lotis, who fled Priapus and became the lotus tree.
- Grief. Niobe, who lost all her children to Apollo and Artemis, became a weeping rock on Mount Sipylus in Lydia. Achilles already tells this to Priam in Iliad 24, which makes it one of the oldest transformation stories we have. The Heliades, sisters of Phaethon, mourned their brother until they became poplars whose tears hardened into amber.
- Reward. Baucis and Philemon, a poor old Phrygian couple, were the only people in their district to take in Zeus and Hermes when the gods came in disguise. They asked to die at the same moment, and were turned into an oak and a linden growing side by side.
- Origin story. Many changes explain where something came from: the hyacinth from Apollo's lover Hyacinthus, the myrrh tree from Myrrha, the Myrmidons from the ants of Aegina, and the human race itself from the stones Deucalion and Pyrrha threw over their shoulders after the flood.
Lesser-known metamorphoses worth knowing
Procne, Philomela and Tereus. The Thracian king Tereus raped his wife's sister Philomela and cut out her tongue to silence her. She wove the story into a tapestry and sent it to Procne, and the sisters took revenge by serving Tereus his own son Itys. As he chased them, all three became birds. Greek writers generally make Procne the nightingale, forever mourning Itys, and Philomela the swallow. Roman authors often swap them, which is why "Philomela" came to mean the nightingale in English poetry. Tereus became the hoopoe.
Caenis and Caeneus. After Poseidon raped the Lapith woman Caenis, he granted her a wish. She asked to become a man so that it could never happen again, and also received an invulnerable body. As Caeneus he fought the centaurs, who could not wound him and in the end hammered him into the ground with tree trunks. Ovid tells this in Metamorphoses 12, through the aged Nestor.
Ceyx and Alcyone. When Ceyx drowned at sea, his wife Alcyone learned of it in a dream sent through Morpheus and threw herself into the waves. The gods turned both into kingfishers. The calm "halcyon days" of midwinter are named after her nesting season.
Cadmus and Harmonia. At the end of their lives, the founder of Thebes and his wife Harmonia became serpents. Euripides has Dionysus foretell it at the close of the Bacchae, and Ovid narrates it in Book 4.
Tithonus. Eos asked Zeus to make her Trojan lover immortal but forgot to ask for eternal youth. The Homeric Hymn to Aphrodite describes him shrivelling away, shut in a room, his voice babbling on endlessly. That he finally became a cicada is a later addition.
Io. Here the god is the one who transforms someone. Zeus turned Io into a heifer to hide her from Hera, which shows that a transformation could be a disguise forced on its victim and not only a punishment (see Io and Zeus).
Shape-shifters versus the transformed
It helps to separate people who are changed from beings who change themselves. Gods disguise themselves all the time: Zeus as a bull for Europa, a swan for Leda and a shower of gold for Danaë. Sea deities are the real masters of the trick. Proteus in Odyssey 4 becomes a lion, a serpent, a leopard, a boar, water and a tree before Menelaus forces an answer out of him. Thetis went through fire, water and wild beasts trying to escape Peleus. In the lost epic Cypria, Nemesis changed into many creatures to flee Zeus, who caught her in the form of a goose. Unlike mortal metamorphoses, these changes can be undone.
The reverse also happens, and it is rarer: an object becoming alive. Pygmalion's statue turning into a woman is the best-known example. The stones of Deucalion are another.
Ovid did not invent these stories
Many readers assume transformation myths are a Roman genre because Ovid's Metamorphoses (completed around AD 8) collects about 250 of them. In fact Hellenistic Greek poets had already written collections: Nicander's Heteroeumena ("Things Changed") and the Ornithogonia attributed to Boio, about people turned into birds. Both are lost, but Antoninus Liberalis summarised many of their tales in his prose Metamorphoses. What Ovid did was link the stories into one continuous poem running from the creation to Julius Caesar's deification, with the moment of change described in close physical detail: bark creeping over skin, fingers becoming leaves.
A common mistake is to read these stories as gentle nature myths. Many of them start with sexual violence (Daphne, Callisto, Philomela, Caenis), and the transformation is often the only way out the story allows.
Ancient sources
- Ovid, Metamorphoses covers Lycaon and Daphne in Book 1, Arachne and Philomela in Book 6, Baucis and Philemon in Book 8, Ceyx and Alcyone in Book 11 and Caeneus in Book 12, among about 250 other changes.
- Homer, Iliad 24: Achilles tells Priam about Niobe turned to stone on Sipylus, the earliest surviving transformation story in Greek.
- Homer, Odyssey 4 and 10: Proteus' shape-changing and Circe turning Odysseus' men into swine.
- Homeric Hymn to Aphrodite: the story of Tithonus, granted immortality without youth.
- Antoninus Liberalis, Metamorphoses: Greek prose summaries of transformation tales, many drawn from the lost works of Nicander and Boio.
- Euripides, Bacchae: foretells that Cadmus and Harmonia will become serpents.
Frequently asked questions
What is the most famous transformation in Greek mythology?
Arachne becoming a spider and Daphne becoming a laurel are probably the best known, mostly thanks to Ovid and to Bernini's sculpture Apollo and Daphne. Narcissus and Medusa are close behind.
Can transformations in Greek myth be reversed?
Very rarely. Circe changes Odysseus' men back into humans, younger and better-looking than before. Io gets her human form back once Hera's anger is calmed. Most mortal transformations are permanent and often end the person's story.
Why did Athena turn Arachne into a spider?
In Ovid, Athena could find no flaw in Arachne's work but was angered by its subject, the gods' crimes. After Arachne tried to hang herself, Athena turned her into a spider out of a kind of harsh pity, so that she and her descendants would hang and weave forever. Fuller detail is on the Arachne page.
Who was turned into a nightingale?
In most Greek versions it is Procne, mourning her son Itys. Latin poets usually give the nightingale to her sister Philomela.