?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Purvis&rft.au=Purvis%2C+A&rft.aufirst=A&rft.date=20+November+2020&rft.issue=6519&rft.atitle=Georgina+Mace+(1953%E2%80%932020)&rft.volume=370&rft.title=Science&rft.pages=915-915&rft.genre=article