@misc{indiciaedd56d9ba7b82,
  title = {Leaf-pile pulling: an unusual play pattern in wild chimpanzees.},
  author = {Toshisada Nishida and William Wallauer},
  year = {2003},
  doi = {10.1002/ajp.10099},
  url = {https://pubmed.ncbi.nlm.nih.gov/12910468/},
  note = {Source identifier: 12910468}
}