In Greek mythology, Zeus (the king of the gods) lusts after a young woman named Callisto, a nymph of Artemis. Hera, Zeus' jealous wife, transforms the beautiful Callisto into a bear. Callisto, while in bear form, later encounters her son Arcas. Arcas almost shoots the bear, but to avert the tragedy, Zeus turns them into bears and puts them in the sky, forming Ursa Major and Ursa Minor
