Daniel Janzen, of the department of biology, is the author of more than 400 publications. He has been widely recognized for his work on the restoration of the Guanacaste Tropical Dry Forest in Costa Rica. Janzen is a member of the National Academy of Sciences and a former MacArthur Fellow. He has received Japan’s Kyoto Prize, the Swedish Royal Academy of Sciences’ Crafoord Prize in Biology, and Penn Arts & Sciences’ Ira Abrams Memorial Award for Distinguished Teaching. He received his Ph.D. in 1965 from the University of California at Berkeley.