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
Distant Past Distant Past "Distant Past" is the 78th episode of the ABC television series, "Desperate Housewives". It is the eighth episode of the show's fourth season and originally aired on November 25, 2007. The episode title "Distant Past" was taken from the title of a bit of underscoring in Stephen Sondheim's film score for Alain Resnais's "Stavisky". Victor has been missing for two days and Carlos wants to tell the police what happened and plead self-defense. Gaby convinces him to keep quiet since no one will suspect they were on the boat with him. The police find Victor's empty boat and