Joel Sartore intends to photograph every animal in captivity in the world. n n He is circling the globe, visiting zoos and wildlife rescue centers to create studio portraits of 12,000 species, with an emphasis on those facing extinction. n n He has photographed more than 6,000 already and now, thanks to a multi-year partnership with National Geographic, he may reach his goal. n n This book showcases his animal portraits: from tiny to mammoth, from the Florida grasshopper sparrow to the greater one-horned rhinoceros. n n Paired with the eloquent prose of veteran wildlife writer Douglas Chadwick, this book presents a thought-provoking argument for saving all the species of our planet. n