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The mechanisms by which self-organized systems like an ant colony reach collective decisions are poorly understood. Models explaining how trail-laying ants select the best food source and adapt to changes in their foraging conditions are often based on mechanisms that are either unrealistic or overly simplified. We studied the individual-level behaviour of the mass-recruiting Argentine ant, Linepithema...
When honeybee, Apis mellifera, swarms lift off to fly to their new nest site, only a small proportion of individuals know the location of the new site, yet these few individuals must guide the entire swarm to the correct place. How do scouts transfer directional information to their swarm-mates? The vision hypothesis proposes that scout bees fly rapidly through swarms ‘pointing’ in the direction of...
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