Insects have always had the ability to track odors, but now researchers have discovered that they can do so at a microscale level. By using a technique called “electroantennography”, scientists were able to measure the electrical activity of the antennae of a fruit fly as it responded to various odors. The results showed that the fly was able to distinguish between different odors at the molecular level. This finding could lead to a greater understanding of how insects are able to track odors and could lead to the development of new methods for controlling insect behavior.

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source: Phys.org