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2017 ; 131
(2
): 174-178
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Stick-weaving: Innovative behavior in tamarins (Saguinus oedipus)
#MMPMID28277719
Snowdon CT
; Roskos TR
J Comp Psychol
2017[May]; 131
(2
): 174-178
PMID28277719
show ga
Some captive cotton-top tamarins spontaneously weave sticks in the mesh of their
enclosures so that the stick is lodged between two mesh openings. Sticks are
broken from natural branches placed in the enclosures and often modified by
biting them in the center before weaving through the mesh. To investigate this
further, we systematically surveyed all animals in our colony and found that all
successful stick-weaving tamarins were descendants from only 2 of the 16 breeding
groups contributing to the colony membership at the time of surveying or were the
mates of these descendants, suggesting stick-weaving is a socially learned
behavior. Successful stick-weavers were presented with pipe cleaners, soda
straws, and wooden dowels to see if they would generalize stick-weaving to novel
objects. Seven of 10 animals successfully wove with straws or pipe cleaners,
showing that they could generalize the behavior to objects that were physically
different but had the same affordances as the sticks. Data from a father-daughter
pair suggest a form of coaching. Innovative behavior is needed for the emergence
of culture with subsequent social transmission. Although innovative behavior in
primates is mainly associated with foraging and is more likely to occur among
males, stick-weaving has no obvious reward and appeared equally in both sexes.
Stick-weaving behavior and its probable social transmission across generations
suggest the possibility of cultural traditions emerging in this species.
(PsycINFO Database Record