First Life Appears

3550000000 BC-02-23 21:40:38 New studies suggest all life (plants and animals) came from a single celled organism and this organism lived 3.55 bya. http://news.nationalgeographic.com/news/2010/05/100513-science-evolution-darwin-single-ancestor/ Advanced forms of life existed on earth as early as 3.55[…]

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Evolution of Dinosaurs

230000000 BC-02-23 19:23:11 Dinosaurs are a diverse group of animals of the clade Dinosauria. They first appeared during the Triassic period, 231.4 million years ago, and were the dominant terrestrial vertebrates for 135 million years[…]

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