The Great London
:
Earth Science
Fossils: Cold snap: Climate cooling and sea-level changes caused crocodilian retreat
Namibia: Study provides strongest evidence oxygen levels were key to early animal evolution
Greenland: Huge ancient river basin explains location of the world's fastest flowing glacier
Oceans: Heat release from stagnant deep sea helped end last Ice Age
Earth Science: Researchers explain why the Greenwich Prime Meridian moved
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