Domesticated silkmoths Bombyx mori have a much more limited perception of environmental odors compared to their wild relatives. A new study on silkmoths revealed that the insects’ ability to perceive environmental odours has been reduced after about 5000 years of domestication by humans. Scientists compared olfactory functions in Bombyx mori and in their wild ancestors. Perception of the pheromone bombykol, however, remained highly sensitive in domesticated males.
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