Estes, Richard D.: - Richard D. Estes has led wildlife-viewing safaris in Africa for many years and is one of the world's foremost experts on the social ecology of African mammals. Dr. Estes is a Research Associate at the Smithsonian Institution Conservation and Research Center, an Associate at the Harvard Museums of Natural History, and a Trustee of The Rare Species Conservatory Foundation. He lives in Peterborough, New Hampshire.