Every spring, Laura Prugh teaches a wildlife research techniques class at the University of Washington. Her students spend much of their time outside, complementing their lecture notes with actual experience. They learn to identify and properly handle animals — frogs, salamanders and bushy-tailed woodrats, for example — and they practice using equipment for tracking animals and estimating populations. But when the UW announced it was moving its spring quarter 2020 classes entirely online to combat the novel coronavirus, Prugh and other instructors across campus faced a new, unchartered challenge.