Maia Callisto with Zeus. Wronged by the love affair, Zeus' wife Hera in a jealous rage had transformed Callisto into a bear. Arcas is the eponym of Arcadia, where Maia was born. The story of Callisto and Arcas, like that of the Pleiades, is an "aition" for a stellar formation, the constellations Ursa Major and Ursa Minor, the Great and Little Bear. Her name is related to μαῖα ("maia"), an honorific term for older women related to μήτηρ ("mētēr") 'mother'. "Maia" also means "midwife" in Greek. In ancient Roman religion and myth, Maia embodied the concept of growth, as her name
Ursa (DC Comics) apparently came about as a side-effect of being imprisoned in the Phantom Zone repeatedly. Following "DC Rebirth", Ursa has been reintroduced in the new continuity as Zod's wife, along with their son Lor-Zod. After joining Henshaw's Superman Revenge Squad and making believe them to free his army, General Zod used the Phantom Zone projector to free them. Along with the Eradicator II, they fled to another planet, planning to create a New Krypton. As a Kryptonian, Ursa derives her superhuman abilities from the yellow sun of Earth's solar system. Her basic abilities are high levels of superhuman strength, superhuman speed