Author's website

Jack Cohen was born 19 September 1933. He is a British reproductive biologist also known for his popular science books and involvement with science fiction.

Cohen has worked as a consultant for both science fiction television shows and science fiction novelists on how to construct plausible aliens. His collaborators and associated works include Anne McCaffrey for the Dragonriders of Pern; the Legacy of Heorot collaboration of Larry Niven, Jerry Pournelle and Steven Barnes; and several works by Terry Pratchett and David Gerrold which he helped design the Chtorr ecology.

In 1999 Terry Pratchett made both Jack and Professor Ian Stewart "Honorary Wizards of the Unseen University" at the same ceremony at which the University of Warwick gave Terry Pratchett an honorary degree.