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When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable "trophic cascade" occurred. What is a trophic cascade and how exactly do wolves change rivers?
Posted 3 years ago by tommee in category: animals   Comments (0)


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World record pole vault at 6.16 m by Renaud Lavillenie at Donetsk (Ukraine). Previous record was held by Sergei Bubka for 21 years.
Posted 3 years ago by ginoongpedro in category: sports   Comments (1)


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Posted 3 years ago by burpie in category: fail   Comments (0)



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...but you'll still end up buying one.
Posted 3 years ago by DraftHouse in category: misc   Comments (0)


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Posted 3 years ago by andrej in category: geeky   Comments (0)