Proto-Indo-European mythology also in the myths of the slaying of the nine-headed Lernaean Hydra by Heracles and the slaying of Python by Apollo. The story of Heracles's theft of the cattle of Geryon is probably also related. Although Heracles is not usually thought of as a storm deity in the conventional sense, he bears many attributes held by other Indo-European storm deities, including physical strength and a knack for violence and gluttony. The original Proto-Indo-European myth is also reflected in Germanic mythology. In Norse mythology, Thor, the god of thunder, slays the giant serpent Jörmungandr, which lived in the waters surrounding the
Giants (Greek mythology) remark that Eurymedon "brought destruction on his froward people" might possibly be a reference to the Gigantomachy and Hesiod's remark that Heracles performed a "great work among the immortals" is probably a reference to Heracles' crucial role in the gods' victory over the Giants. The Hesiodic "Catalogue of Women" (or the "Ehoia") following mentions of his sacks of Troy and of Kos, refers to Heracles having slain "presumptious Giants". Another probable reference to the Gigantomachy in the "Catalogue" has Zeus produce Heracles to be "a protector against ruin for gods and men". There are indications that there might have been