How amphibians crossed continents: DNA helps piece together 300-million-year journey

4 agosto 2014

A professor has succeeded in constructing a first-of-its-kind comprehensive diagram of the geographic distribution of amphibians, showing the movement of 3,309 species between 12 global ecoregions. Armed with DNA sequence data, he sought to accurately piece together the 300-million-year storyline of their journey.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Pp-LQQKXZLA/140804123214.htm

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