Evolution picks up hitchhikers

[unable to retrieve full-text content]In a twist on "survival of the fittest," researchers have discovered that evolution is driven not by a single beneficial mutation but rather by a group of mutations, including ones called "genetic hitchhikers" that are simply along for the ride. These hitchhikers are mutations that do not appear to have a role in contributing to an organism's fitness and therefore its evolution, yet may play an important role down the road.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_science/~3/q8Nn02c5T1o/130722203041.htm

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