the planet, where he meets his future parents-to-be and falls in love with a Kryptonian actress named Lyla Lerrol. A Superman "imaginary story" entitled "What If Krypton Had Not Exploded?" (reprinted in the trade paperback The Greatest Superman Stories Ever Told) gave more insight into Krypton's society. This era also established that the Guardians of the Universe, the administrators of the interstellar police force, the Green Lantern Corps, were themselves aware of Krypton's pending destruction and assigned Green Lantern Tomar-Re to avert it, but he was ultimately unsuccessful in his attempt. In 1980, a three-issue miniseries titled World of Krypton was published, providing a great amount of detail into Krypton's history just before its destruction, along with the life story of Jor-El himself. A three-issue miniseries entitled The Krypton Chronicles, published in 1981, tells of Superman researching his roots when, as Clark Kent, he was assigned to write an article about Superman's family by an assignment editor impressed with the television miniseries Roots. To do so, he and Supergirl travel to Kandor, where they learn the history of the El family. In 1985, writer Alan Moore gave a somewhat darker glimpse into the world of Krypton in his story "For the Man Who Has Everything" (in Superman Annual #11), the premise being an elaborate dream of Superman's in which Krypton had not exploded and he had grown to adulthood there. Background details are culled from other Krypton stories. This same story was retold in the animated series Justice League Unlimited in an episode by the same name and several elements were used in the Supergirl series episode "For the Girl Who Has Everything". The story was also an inspiration for Krypton episode "Mercy". Flora and fauna Krypton has a vast number of flora and fauna, both wild and domesticated. Some of them look very similar to Earth's animals, due to parallel evolution, e.g., birds, felids, canids, simians, etc., as seen in Krypto and Beppo; while others look very different, due to divergent evolution, e.g., fish/snake/eel-like hybrid creatures called "fish-snakes", goat-like creatures called "Zuurt", bovine-like creatures called "Rondor", rhino/ceratopsian-like hybrid creatures called "Thought-Beasts", dragon-like creatures called "H'Raka", gigantic, one-horned snake-like creatures called "Drang", and jellyfish-like invertebrate creatures called "Shoggoth". Moons One of Krypton's moons, Wegthor, was accidentally destroyed by the Kryptonian scientist Jax-Ur, who was experimenting with a nuclear missile that was diverted from its intended destination. The disaster killed 500