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In a normal year, biologists Daniel Janzen and Winnie Hallwachs spend about six months in Costa Rica, where they conduct research and pursue conservation efforts in Área de Conservación Guanacaste (ACG), a World Heritage Site in the northwest that encompasses, a network of parks and preserves they helped establish in the 1980s and that has grown to more than 400,000 acres, including marine, dry forest, cloud forest, and rain forest environments.
In 2020 that is where the married couple was when the COVID-19 pandemic took hold of the world, and compelled them to extend their stay in the virus-free forest until the fall, when they felt safe enough to travel back to their other home in Philadelphia.