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Monday, November 23, 2009 |
Monday, November 23, 2009 |
Photo: Snake-Fang Evolution Mystery Solved -- "Major Surprise"A study published in July 2008 suggests venomous snakes got their poison 60 million years ago and fang variation among species evolved after that. Vonk, the lead author, said the findings were "a major, major surprise." Photograph courtesy Freek Vonk
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