The Nemean lion (/nɪˈmiːən/; Greek: Νεμέος λέωνNeméos léōn; Latin: Leo Nemaeus) was a vicious monster in Greek mythology that lived at Nemea. It was eventually killed by Heracles. It could not be killed with mortals' weapons because its golden fur was impervious to attack. Its claws were sharper than mortals' swords and could cut through any armor.
Today, lions are not part of the Greek fauna (or the fauna of Europe). However, according to Herodotus, lion populations were extant in Ancient Greece, until around 100 BC when they became extinct.
The lion is usually considered to have been the offspring of Typhon (or Orthrus) and Echidna; it is also said to have fallen from the moon as the offspring of Zeus and Selene, or alternatively born of the Chimera. The Nemean lion was sent to Nemea in the Peloponnesus to terrorize the city.
The first of Heracles' twelve labours, set by King Eurystheus (his cousin) was to slay the Nemean lion.
According to one version of the myth, the Nemean lion took women as hostages to its lair in a cave near Nemea, luring warriors from nearby towns to save the damsel in distress. After entering the cave, the warrior would see a woman (usually feigning injury) and rush to her side. Once he was close, the woman would turn into a lion and kill the warrior, devouring his remains and giving the bones to Hades.