Professor at Roosevelt University for 25 years. I am also Adjunct Curator at Field Museum. My research specialties are predator-prey relations (lions-leopards-hyaenas- raptors). I also conduct African small mammal biodiversity/surveys and the alpha-taxonomy of rodents, bats and shrews. I have conducted small mammal surveys in eastern half of Africa for 30 years and have described 12 species new to science.