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
Super Friends: The Legendary Super Powers Show previous series, "Super Friends: The Legendary Super Powers Show" was produced to tie-in with the Super Powers Collection toyline produced by Kenner, hence the name change. The general story, as detailed in the mini-comics that accompanied the figures, was that the major heroes of Earth had teamed up to fight Darkseid and his villains. Thirteen heroes made up the Super Friends. They were: According to DC writer/historian Mark Waid, Aquaman's sole appearance in "The Legendary Super Powers Show" comes via his appearance within the opening credits. The same is true for The Flash. This was the first time Wonder Woman