New research reveals that the ability of ants to distinguish nestmates from outsiders is a highly flexible, learned behavior rather than a rigid genetic program. Using clonal raider ants, scientists discovered that while ants possess an intrinsic “sense of self” based on their own genotype, they can update their social templates through repeated exposure to foreign odors. This process allows outsiders to be integrated into a colony, provided there is consistent contact to maintain this learned tolerance. The study suggests that the ant colony functions like a multicellular organism, using a sophisticated “social immune system” to manage cooperation and defense. ….[READ]
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