Nemean Lion

Accounts vary. Hesiod names the creature as offspring of Orthus and an ambiguous female monster (variously interpreted as Chimera, Echidna, or Ceto) and records traditions that connect the beast to Hera's animus toward Heracles. Other classical sources present variant parentage: Apollodorus records Typhon as parent, while Aelian (citing Epimenides) and Hyginus give a version in which the lion was 'sprung from' Selene (the Moon) at Hera's request. Some traditions further integrate the lion into a monstrous genealogy that includes figures such as the Theban Sphinx, Cerberus, the Lernaean Hydra, and (in one source) Ladon as a sibling.

Described in classical summaries as a large, formidable lion with golden fur and a hide impervious to mortal weapons. Artistic traditions repeatedly show Heracles in close hand-to-hand combat with the beast and later depicted wearing its pelt as a mantle and identifying attribute.

The lion's hide/fur was said to be impenetrable to mortal weapons—arrows and sword-blows would not kill it—and its claws were described as 'sharper than mortal swords,' capable of cutting through strong armour. Behaviorally it lived at Nemea and terrorized the hills and inhabitants there; in myth it functions as a targeted adversary whose presence may be attributed in some accounts to divine agency (notably Hera's hostility).