Reconstructing the Evolution of Laughter in Great Apes and Humans

@article{Ross2009ReconstructingTE,
  title={Reconstructing the Evolution of Laughter in Great Apes and Humans},
  author={Marina Davila Ross and Michael J. Owren and Elke Zimmermann},
  journal={Current Biology},
  year={2009},
  volume={19},
  pages={1106-1111}
}

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