For any complex society to function properly, individuals must reliably recognize their friends and family with whom they live and work and readily distinguish those allies from strangers. Ants and other social insects manage this feat of recognition based on chemical pheromones, which are detected via sensors in their antennae. Now researchers have discovered that when it comes to assessing body odors, ants really don't miss a thing.
from Strange & Offbeat News -- ScienceDaily http://ift.tt/1IL4ZKU
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