The world famous San Diego Zoo is a non-profit wildlife sanctuary home to more than 3,500 rare and endangered animals representing more than 650 species and subspecies, and a prominent botanical collection with more than 700,000 exotic plants. It is located just north of downtown San Diego in Balboa Park. San Diego Zoo Global is a not-for-profit organization that operates the San Diego Zoo, the San Diego Zoo Safari Park, the San Diego Zoo Institute for Conservation Research, and the San Diego Zoo Global Wildlife Conservancy. The Zoo was founded on October 2, 1916, by Harry M. Wegeforth, M.D. It currently has an 11-member Board of Trustees headed by Steven G. Tappan; and Paul A. Baribault is the president/CEO.