@misc{indiciaee305f8f66a4a,
  title = {Evolution. A trigger for the Cambrian explosion?},
  author = {Richard A Kerr},
  year = {2002},
  doi = {10.1126/science.298.5598.1547},
  url = {https://pubmed.ncbi.nlm.nih.gov/12446888/},
  note = {Source identifier: 12446888}
}