ArticlePrimates; journal of primatology2020
Fake twins? Two cases of intensive allomaternal care by female Japanese macaques before and after their own partum.
Article in Primates; journal of primatology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 10 citations in OpenAlex.
- The adaptive functions of routine allomaternal behavior in free-ranging Taihangshan macaques.Current zoology · 2026Article
- Twinning in wild, endangered lion-tailed macaques Macaca silenus in the Anamalai Hills of the Western Ghats, India.Primates; journal of primatology · 2024Article
- Precursors and aftermath of severe targeted aggression in captive cotton-top tamarins.Primates; journal of primatology · 2023Article
- Behavioral adaptation in an adoptive free-ranging female Tibetan macaque.Primates; journal of primatology · 2023Article
- Allomaternal care and 'adoption' in an edge-of-range population of Taihangshan macaques in Northern China.Current zoology · 2023Article
- Two wild female bonobos adopted infants from a different social group at Wamba.Scientific reports · 2021Article
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Abstract
Allomaternal care is widely observed among primate species. Although diverse allomothering behavioral repertoire and types of caretakers have been reported, it remains unclear what social or physiological conditions may trigger such care in each individual. For a better understanding of mechanisms that give rise to allomaternal care in primates, more observational reports are needed with information on social or physiological conditions of caretakers. Here I report two cases of intensive allomaternal care in two different populations of Japanese macaques (Macaca fuscata). The two adult females provided intensive allomaternal care including carrying, grooming, and nursing towards others' infants. Their allomaternal care began 20 or 29 days prior to their own partum and lasted for 84 days at the most. This study firstly showed that nursing forms part of the allomothering behavioral repertoire, and allomaternal caretakers can be individuals that are prior to the time of their own partum in Japanese macaques. Their intensive allomaternal care may stem from their good nutritional conditions, increased concentrations of several hormones, or disappearance of the newborn infants' biological mothers.
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