No Scent, No Sex For The Japanese Beetle
Having a good nose is essential to a Japanese beetle’s survival. The beetle’s sense of smell helps it avoid enemies and zero in on a mate. Meanwhile, the potential mate is programmed to release sex pheromones in exactly the right proportions. Like cheap perfume, there is such a thing as too much: Excessive pheromones can get the attention of a passing fly, leading her to the beetle.
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