Original sentence: Konrad Zacharias Lorenz (November 7, 1903 - February 27, 1989) was an Austrian zoologist and ornithologist; and  founder of modern ethology.The extent of Lorenz's involvement in Nazism has led to heated debates within the academic world.What is clear is that his published writing during the Nazi period included support for Nazi ideas of "racial hygiene", couched in pseudo-scientific metaphors
Edited sentence: Konrad Zacharias Lorenz (November 7, 1903 - February 27, 1989) was an Austrian zoologist and Ornithologist; and  founder of modern ethology.Lorenz's involvement in Nazism has led to heated debates within the academic world