Jack C. Haldeman II studied environmental engineering and biology and received his degree from Johns Hopkins University. His scientific career included work in parasitology, field studies of whales in the Canadian Arctic, and study of the greenhouse effect. The tapeworm
Hymenolepis haldemani was named after him.
The older brother of science fiction author Joe Haldeman, Jack Haldeman wrote five novels and published more than seventy-five short stories. "High Steel," which he wrote with Jack Dann, was a Nebula Award finalist; it was later expanded to novel length.
Haldeman died of cancer in 2002 in his home of many years, Gainesville, Florida.
