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flag Young baboons act jealous like human children, interrupting mother-sibling grooming, a Namibia study shows.

flag Young baboons show jealousy similar to human children, a study of 49 infants in Namibia found. flag They interrupted their mothers grooming siblings more often than when mothers were resting, using biting, slapping, or crying. flag Mothers showed unequal attention, and while interruptions rarely led to immediate rewards—only 9% of the time did they redirect grooming—the behavior suggests jealousy may serve deeper social or developmental purposes. flag The findings indicate that such emotions may be evolutionarily shared across primates.

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