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Male Guppies grow larger brains in response to predator exposure – but not females – BiOME Ecology Magazine
Male guppies exposed to predators in the wild or in captivity have heavier brains than those living in relatively predator-free conditions, according to new research published in the journal Functional Ecology. Behavioural ecologists from Liverpool John Moores University, UK and McGill University, Canada sampled guppies from two rivers in northern Trinidad. In each river, guppies live …