ISTANBUL -- As scientists around the world celebrate the 150th anniversary of Charles Darwin's seminal work on evolution, Adnan Oktar, a college dropout turned theorist of Islamic creationism, is working on the fifth volume of a 14-part masterwork that he says will bury Darwinism once and for all.

"Darwin and his theory are dead," says Mr. Oktar, founder and honorary president of the Science Research Foundation, an Istanbul outfit dedicated to debunking the Victorian-era English naturalist. Darwin, says his 52-year-old Turkish...