In San Francisco, California, #NatGeoExplorer Christopher Schell (c.j.schell) is exploring how wildlife thrives in urban environments. But beyond the science, it’s the stories from people that stay with him — stories that highlight our shared connection to the natural world, even in the heart of a city. Stay tuned as we pass the National Geographic Society flag to the next Explorer before it makes its way back to the National Geographic Museum of Exploration (natgeomuseum), opening June 26 in Washington, D.C. #PassTheFlag 🟦🟫🟩