Michael Crichton and Stephen Gurewitz, have which mutual occupation?
Michael Crichton John Michael Crichton ( ; October 23, 1942 – November 4, 2008) was an American best-selling author, screenwriter, film director and producer best known for his work in the science fiction, medical fiction and thriller genres. His books have sold over 200 million copies worldwide, and many have been adapted into films.
Nelson Hairston Nelson Hairston Sr. (16 October 1917 – 31 July 2008) was an American ecologist. Hairston is well known for his work in ecology and human disease. In the field of ecology he is famous for championing the idea of the trophic cascade, on which he published the provocative “Green World Hypothesis” with colleagues Frederick E. Smith and Lawrence B. Slobodkin. Nelson was also deeply interested in the factors that control human disease and was an adviser to the World Health Organization for many years.