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Penguin Microevolution
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Penguin Microevolution

July 26, 2010
The graphic shows the microevolutionary changes in Adelie penguins and migration patterns.

By comparing the genetic code retrieved from 6,000-year-old remains of Adelie penguins in Antarctica with that of modern Adelies living at the same site as their ancestors, an international team of researchers has shown that microevolution, the process of evolutionary change at or below the species level, has taken place in the population. They also speculate that the remarkable lack of genetic differentiation among Adelie populations from around Antarctica may have been prompted by changes in migration patterns caused by giant icebergs.