Journalist Jon Mooallem has watched his little daughter's world overflow with animals butterfly pajamas, appliqued owls--while the actual world she's inheriting slides into a great storm of extinction. Half of all species could disappear by the end of the century, and scientists now concede that most of America's endangered animals will survive only if conservationists keep rigging the world around them in their favor. So Mooallem ventures into the field, often taking his daughter with him, to move beyond childlike fascination and make those creatures feel more real. Wild Ones is a...