@misc{indiciae624f2ae6c4a7,
  title = {Evolution of behavior by density-dependent natural selection.},
  author = {P Z Guo and L D Mueller and F J Ayala},
  year = {1991},
  doi = {10.1073/pnas.88.23.10905},
  url = {https://pubmed.ncbi.nlm.nih.gov/1961760/},
  note = {Source identifier: 1961760}
}