The losses of animal species have spurred some conservationists to do just about anything to save endangered animals and have inspired researchers to develop technology that might bring back once-extinct species. But even if we could bring back extinct species, should we? In his new book, “The Fall of the Wild: Extinction, De-Extinction, and the Ethics of Conservation,” Arizona State University sustainability scholar Ben Minteer looks into the ethical dilemmas of the loss and recovery of animal species. “A few years ago, I began to notice that my writing about extinction and the wild was becoming preoccupied with the challenge of balancing the pragmatic need for action with a respect for more traditional preservationist values,” said Minteer, a professor with the School of Life Sciences and the Arizona Zoological Society Endowed Chair at ASU. “The science editor at Columbia University Press approached me about putting together a little book on the subject. He’d read some of my writing on de-extinction and specimen collection and thought these views could be presented to a broad audience.” Read Minteer's Q&A about this subject and his new book on ASU Now.