Barro Colorado Island, a tiny island in the Panama Canal, is one of the best studied tropical forests in the world. With an area of just 15.6-square-kilometers (6-square-miles), this island hosts an astonishing diversity of species. Seventy-six bat species share this small space, and through an extraordinary suite of sensory, morphological, foraging and social adaptations, they each manage to make a living in this dense rainforest. The book BAT ISLAND includes over 150 stunning images from National Geographic contributor, Christian Ziegler, together with text describing the fascinating ecology, evolution and behavior of tropical bats by Rachel Page (Smithsonian Tropical Research Institute), Dina Dechmann (Max Planck Institute of Animal Behavior), Marco Tschapka (University of Ulm), and Teague O'Mara (Bat Conservation International). The book is a tribute to our dear friend and bat biologist extraordinaire, Elisabeth Kalko. Proceeds from the book go to the Kalko Fellowship Fund, offering research opportunities for the next generation of tropical bat scientists.