Evolution; Chicxulub or volcanoes (Introduction)

by David Turell @, Sunday, November 27, 2011, 18:22 (4541 days ago) @ David Turell

There are two theories about the end of dinosaurs: the big asteroid in the Yucatan or volcanoes in Siberia. It is probably both:


http://online.wsj.com/article/SB10001424052970204531404577052090769957890.html?KEYWORDS...


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