Penn Biologist Daniel Janzen Honored With BBVA Foundation Frontiers of ... Penn: Office of University Communications Working with his wife, biologist Winnie Hallwachs, Janzen helped acquire and restore degraded forest in Costa Rica to become the 163000-hectare Ãrea de Conservación Guanacaste, a tropical-forest reserve. The ACG is now a UNESCO World Heritage Site, ... |
Wednesday, February 8, 2012
Penn Biologist Daniel Janzen Honored With BBVA Foundation Frontiers of ... - Penn: Office of University Communications
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