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Biologist Walter Gehring and hiscolleagues from the University ofBasel in Switzerland have developedgenetically engineered swarms offruit flies, helping them understandhow nature fashions the eye in livingorganisms.
They identified the master control gene, eyeless, instrumental in eyeformation in fruit flies. They insertedmultiple copies of this gene in fruitfly embryos. The result: flies withmultiple eyes positioned all over theirbodies.