Join GARNA and Nathrop resident Denny Radabaugh for the program “In Defense of Spiders,” in which Radabaugh will attempt to dispel some cultural fears about spiders. He will also talk about their benefits to humans, such as uses of spider silk, which is as strong as steel. The presentation will cover information such as the number of spider species in the world, Colorado and Chaffee County, the evolutionary origins and defining characteristics of the spider, spider biology including their senses, and spiders as predators in ecosystems. Click here for details. Online registration is available at http://garna.org/calendar/spiders-5-14-17/.