“Wild Visions: Imaging and Imagining the American Wilderness.” Center for Biology and Society Conversation Series, 2017. With Mark Klett and Michelle Sullivan. [click on image to view]


“Extinct Species Should Stay Extinct.”  A public lecture at the American Museum of Natural History, New York City, 2014.  Sponsored by the Center for Humans and Nature/Hastings Center/AMNH Center for Biodiversity and Conservation. [click on image to view]


“Extinction and the Price of Pragmatism.” A public lecture at the Chicago Botanic Garden, 2014.  Center for Humans and Nature – Forum on Ethics and Nature. [click on image to view]