@misc{indiciae0a20d7e9a1a6,
  title = {[Progress in study on animal's numerical competence].},
  author = {Chao-Lin Ma and Bao-Ming Li},
  year = {2004},
  url = {https://pubmed.ncbi.nlm.nih.gov/15614411/},
  note = {Source identifier: 15614411}
}