Being Unique Has Advantages: 'Rareness' Key To Some Insects Being Favored By Evolution

As the saying goes -- blondes have more fun, but in the world of insects it may actually be the rare "redheads" that have the last laugh ... at least in terms of evolution. A new study has discovered that genetic variation in an asexual insect -- insects that reproduce by cloning themselves -- is maintained by rare clones being chosen for the next generation, a phenomenon known as frequency-dependent selection.

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