Mammals from zoo populations generally lived longer than their wild counterparts (84% of species) with the effect most notable in species with a faster pace of life (i.e. a short life span, high reproductive rate and high mortality in the wild), in a study of over 50 mammal species.

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Mammals from zoo populations generally lived longer than their wild counterparts (84% of species) with the effect most notable in species with a faster pace of life (i.e. a short life span, high reproductive rate and high mortality in the wild), in a study of over 50 mammal species.