title: Obituary: Bryan Clarke.
authors.forename: Wallace
authors.initials: W
authors.lastname: Arthur
mesh_terms: D000818:Animals; D005075:Biological Evolution; D056727:Endangered Species; D049673:History, 20th Century; D012908:Snails / Q000235:genetics* / Q000502:physiology; D006113:United Kingdom; D015046:Zoology / Q000266:history*