EVOLUTION IN ACTION
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Cichlid fish have been called "a crucible for evolution studies".
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2 November 2009 Beetles reveal ecological speciation in action by Kate Melville Tiny leaf beetles that flit among the maple and willow trees in Vermont are providing scientists with some of the clearest evidence yet that environmental factors play a major role in the formation of new species. Vanderbilt University researcher Daniel Funk has been studying this odd group of leaf beetles (which resemble unappetizing caterpillar pellets) for 15 years.
Comparing the genomes of Tibetans and Han Chinese, the majority ethnic group in China, the biologists found that at least 30 genes had undergone evolutionary change in the Tibetans as they adapted to life on the high plateau.
A major evolutionary innovation has unfurled right in front of researchers' eyes.