Platypus research 1798-1998.
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Griffiths
D000818:Animals; D001315:Australia; D005060:Europe; D005260:Female; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D008297:Male; D019021:Natural History / Q000266:history; D010987:Platypus / Q000033:anatomy & histology / Q000502:physiology; D012106:Research / Q000266:history*