Cross‐genus adoption of a marmoset (Callithrix jacchus) by wild capuchin monkeys (Cebus libidinosus): case report

  title={Cross‐genus adoption of a marmoset (Callithrix jacchus) by wild capuchin monkeys (Cebus libidinosus): case report},
  author={Patr{\'i}cia Izar and Michele Pereira Verderane and Elisabetta Visalberghi and Eduardo B. Ottoni and Marino Gomes De Oliveira and Jeanne Shirley and Dorothy Munkenbeck Fragaszy},
  journal={American Journal of Primatology},
We report a case of interspecies adoption of an infant marmoset (Callithrix jacchus) by wild capuchin monkeys (Cebus libidinosus). The marmoset was an infant when it was first observed in the capuchin group on 3 March 2004. Since it first appeared it has been observed informally and frequently. In January 2005 systematic observations were made of the marmoset and a capuchin of similar age. Throughout its period of adoption the marmoset appeared to be socially integrated into the group… 

A case of adoption in a wild group of black-fronted titi monkeys (Callicebus nigrifrons)

The first case of infant adoption in an unprovisioned group of wild black-fronted titi monkeys is observed, suggesting that infant recognition is poorly developed in this species and that under certain circumstances wild groups of C.nigrifrons can successfully rear twins.

A unique case of extra-group infant adoption in free-ranging Angola black and white colobus monkeys (Colobus angolensis palliatus)

This case of infant adoption by an adult female Angola black and white colobus monkey who adopted an extra-group infant alongside her own biological infant appears to have been an outcome of the adoptee’s persistent desire to be cared for and the female's strong propensity to engage in allomaternal behavior.

Cross‐genus adoptions in delphinids: One example with taxonomic discussion

A unique case of a cross‐genus adoption within a small community of common bottlenose dolphins at Rangiroa Atoll in French Polynesia is described and it is argued that the primiparous foster mother’s inexperience and personality may have contributed to factors driving such non‐adaptive behavior.

Adoption of an orphaned and temporarily captive infant by an unrelated adult female in black-and-gold howler monkey: implications for management strategies

Conservation behavior involves the application of general principles of animal behavior for solving conservation problems. In primates, adoption of infants has been reported in several species and

Equal care for own versus adopted infant in tufted capuchins (Sapajus spp.)

This study describes a case of adoption by a female tufted capuchin (Sapajus spp.) who spontaneously adopted a newborn immediately after he was abandoned, then raised him successfully with her own

A case of infant swapping by wild northern muriquis (Brachyteles hypoxanthus)

Two wild northern muriquis (Brachyteles hypoxanthus) exchanged infants of different sexes and then reared their adopted infants through weaning, raising questions about the age and mechanisms of mother–infant recognition in this species.

Wild robust capuchin monkey interactions with sympatric primates

It is found that robust capuchins can present aggressive interactions even to primates larger than themselves and that aggressive behavior was the most common response in populations living in larger groups and drier environments.

Abduction and potential case of predation of an infant howler monkey (Alouatta guariba clamitans) by a tufted capuchin monkey (Sapajus nigritus)

The observation of an abduction and potential case of predation of an infant howler monkey by an adult male capuchin monkey in Minas Gerais, Brazil and arguments in favour of the case of interspecific predation or infanticide are presented.

Commensalism or Cross-Species Adoption? A Critical Review of Theories of Wolf Domestication

  • J. Serpell
  • Biology
    Frontiers in Veterinary Science
  • 2021
It is concluded that the commensal scavenger hypothesis is untenable based on what is known about recent and ancient hunter-gatherer societies, and that wolf domestication was predicated on the establishment of cooperative social relations between humans and wolves based on the early socialization of wolf pups.



Cross-fostering between two species of marmosets (Callithrix jacchus) and Callithrix penicillata).

It is concluded that this technique can be very useful for preserving the life of rejected by parents or orphan infants, mainly in the case of species with low reproduction rate in captivity or those threatened by extinction, as well for investigating the environmental effects on the typical behavior of species.

Parental care in the buffy-tufted-ear marmoset (Callithrix aurita) in wild and captive groups.

The data agree with previous studies: the father's lower investment in carrying when adult helpers are present and lower contribution of subadult non-reproductive members are lower.

Infant Carrying Behavior in Callitrichid Primates: Callithrix and Leontopithecus

The results suggest that if helpers reduce energetic demands on lactating females, the mechanism by which helpers reduce these burdens is independent of maternal carrying effort.

Interaction Between Capuchins and Coatis: Nonagonistic Behaviors and Lack of Predation

It is believed the lack of predation can be attributed to 2 different ecological contigencies – the absence of coati pups in a period of food shortage, and the cost of dealing with a dangerous adult coati where other rich resources were available.

Wild capuchin monkeys (Cebus libidinosus) use anvils and stone pounding tools

An exploratory investigation in an area where nut‐cracking by wild capuchin monkeys is common knowledge among local residents finds physical evidence that monkeys cracked nuts on rock outcrops, boulders, and logs (collectively termed anvils).

Infant cross‐fostering between Japanese (Macaca fuscata) and rhesus macaques (M. mulatta)

The results indicate that raising nonhuman primate infants with members of a different species can be a viable means of altering species‐typical experience without sacrificing essential aspects of maternal care, socialization, and psychological well‐being.

Adoption in Anthropoid primates

The literature indicates certain trends: adult females, especially if lactating or in the late stages of pregnancy, are most likely to adopt neonates, and older infants are more likely to be adopted by juveniles or by adult males, while orphans still reliant on milk are unlikely to survive.

The Complete Capuchin: The Biology of the Genus Cebus

This book discusses capuchins in Nature, their taxonomy and distribution with Anthony Rylands, and their role in community ecology and behavioural psychology.

Watching the best nutcrackers: what capuchin monkeys (Cebus apella) know about others’ tool-using skills

Findings are reported showing that the choice of observational targets is an active, non-random process, and that observers seem to have some understanding of the relative proficiency of their group mates, preferentially watching the more skilled nutcrackers, which enhances not only scrounging payoffs, but also social learning opportunities.

Adopting adoption

It is suggested that adoption in birds and mammals is a route for the transfer of learnt information through social learning of patterns of behaviour, including styles of parenting, which may provide additional opportunities for the spread of the 'adoptive' behaviour itself.