Food-washing monkeys recognize the law of diminishing returns

Few animals have the cognitive faculties or prehensile abilities needed to eliminate tooth-damaging grit from food surfaces. Some populations of monkeys wash sand from foods when standing water is readily accessible, but this propensity varies within groups for reasons unknown. Spontaneous food-wash...

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Bibliographic Details
Published in:	eLife
Main Authors:	Jessica E Rosien, Luke D Fannin, Justin D Yeakel, Suchinda Malaivijitnond, Nathaniel J Dominy, Amanda Tan
Format:	Article
Language:	English
Published:	eLife Sciences Publications Ltd 2025-05-01
Subjects:	Macaca fascicularis disposable-soma hypothesis life history trade-offs sunk-cost fallacy
Online Access:	https://elifesciences.org/articles/98520

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