@misc{indiciae47780feb16e2,
  title = {Changes in vigilance with group size under scramble competition.},
  author = {G Beauchamp and G D Ruxton},
  year = {2003},
  doi = {10.1086/368225},
  url = {https://pubmed.ncbi.nlm.nih.gov/12776891/},
  note = {Source identifier: 12776891}
}