Dinosaur, Memes, and Dinosaurs: did you know?  2/3 of the planet's wildlife could be  extinct by 2020. According to the World  Wildlife Fund, our animal population  already declined 58% between 1970  and 2012, and we're on the edge of a  new era in which human activity has  irreversibly altered the ecosystem. This  loss of wildlife would be the largest  mass extinction since the dinosaurs
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