Water scarcity is one of the greatest challenges of our time, according to the United Nations. For the Dolan family of Philadelphia, water runs deep and personal. Almost 90 years ago, Philadelphia-area naturalist/adventurist, Brooke Dolan II, led expeditions to western China and Tibet and collected the Asian mammals on exhibit in the dioramas of the Academy of Natural Sciences of Drexel University. He and his colleagues also brought back thousands of other specimens to study at a time when the world looked to natural history museums for information on countless little-known species.