Richard Darwin Keynes, CBE, FRS (/ˈkeɪnz/ KAYNZ; 14 August 1919 – 12 June 2010) was a British physiologist. The great-grandson of Charles Darwin, Keynes edited his great-grandfather's accounts and illustrations of Darwin's famous voyage aboard HMS Beagle into The Beagle Record: Selections From the Original Pictorial Records and Written Accounts of the Voyage of the H.M.S. Beagle, which won praise from the New York Review of Books and The New York Times Book Review.