The Lost Worlds of Planet Earth Ortelius hypothesized the idea that land masses may have been connected in the past, Alfred Wegener who hypothesized the idea of a super-continent Pangaea and continental drift despite the prevailing idea of flooded land-bridges at the time, and Bruce C. Heezen and Marie Tharp who discovered the Mid-Atlantic Ridge that supported the theory of plate tectonics. Tyson describes how the landmasses of the earth lay atop the mantle, which moves due to the motion and heat of the earth's outer and inner core. Tyson moves on to explain the asteroid impact that initiated the Cretaceous–Paleogene extinction event, leaving small mammals
To the Ends of the Earth To the Ends of the Earth To the Ends of the Earth is the name given to a trilogy of nautical, relational novels—"Rites of Passage" (1980), "Close Quarters" (1987), and "Fire Down Below" (1989)—by British author William Golding. Set on a former British man-of-war transporting migrants to Australia in the early 19th century, the novels explore themes of class (assumed status) and man's reversion to savagery when isolated, in this case, the closed society of the ship's passengers and crew. The first of the books, "Rites of Passage," was awarded the Man Booker Prize in 1980. The trilogy as a