The first case of dental flossing by a Japanese macaque (Macaca fuscata): implications for the determinants of behavioral innovation and the constraints on social transmission

  title={The first case of dental flossing by a Japanese macaque (Macaca fuscata): implications for the determinants of behavioral innovation and the constraints on social transmission},
  author={Jean-Baptiste Leca and No{\"e}lle Gunst and Michael Alan Huffman},
We report the first case of dental flossing behavior by a Japanese macaque. We used cross-sectional data to assess the presence of this novel tool-use behavior at the group-level. Although this behavior was performed frequently by a central middle-ranking middle-aged female during her grooming interactions, and appeared at least four years ago, it remained idiosyncratic to its innovator, and until now has not spread to other group members. We examined the factors that may have favored this… 

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