Fruit Fly Propagation

Fruit flies, to humans, are an annoying batch of little critters. But to other fruit flies, there is a different picture. A team led by University California researchers has discovered a sensory system in the foreleg of the fruit fly that tells male flies whether a potential mate is from a different species. The work addresses a central problem in evolution that’s poorly understood: how animals of one species know not to mate with animals of other species.

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