Tree Hill Jacksonville Nature Center 7152 Lone Star Road Jacksonville, Florida 32211 (904) 724-4646
Zoological Society of San Diego Worldwide Tours Program P.O. Box 551 San Diego, California 92112
Greenburgh Nature Center Dromore Road Scarsdale, New York 10583 (913) 723-3470
World Wildlife Fund 1250 N.W. 24th Street Washington, D.C. 20037 (202) 293-4800
American Museum of Natural History
Discovery Tours
Central Park West at 79th Street
New York, New York 10024
(212) 769-5700/ 1-800-462-8687