Multilevel societies have, until now, only been known to exist among large-brained mammals including humans, other primates, elephants, giraffes, and dolphins. Now, scientists from the Max Planck Institute of Animal Behavior and the University of Konstanz report the existence of a multilevel society in a small-brained bird, the vulturine guineafowl (Acryllium vulturinum). The study, published in Current Biology, suggests that the birds…

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Source: archeo