"Mackal, Roy"@en . . . . "2013Z"^^ . . . . "Roy P. Mackal (August 1, 1925 \u2013 September 14, 2013) was a University of Chicago biologist best known to the general public for his interest in the Loch Ness Monster and other cryptozoological entities."@en . "American biochemist" . . . "2013-09-14Z"^^ . "1925Z"^^ . "Dr. Roy P. Mackal"@en . . "1925-08-01Z"^^ .