The baiji dolphin is believed to have gone extinct in the early 2000s. No one has seen a baiji in nature since 2002. The baiji had some of the most advanced sonar of any dolphin species. Learn more about this remarkable animal in Baiji Dolphin, an Extinct Animals book.

The tragic recognition of the extinction of the Yangtze River Dolphin or baiji in 2007 became a major news story and sent shockwaves around the world. It made a romantic story, for the baiji was a unique and beautiful creature that features in many Chinese legends and folk tales. The Goddess of the Yangtze, as it was known, was also the lone representative of an entire and ancient branch of the Tree of Life. But perhaps the greater tragedy is that its status as one of the world's most threatened mammals had been widely recognized, yet despite wide publicity virtually no international funds became available. A compelling read by a young naturalist, Samuel Turvey tells the story of the plight of the Yangtze River Dolphin from his unique perspective as a conservation biologist deeply involved in the struggle to save the dolphin. This is both a celebration of a beautiful and remarkable animal that once graced one of China's greatest rivers, its natural history and its role as a cultural symbol; and also a personal, eyewitness account of the failures of policy and the struggle to get funds that led to its tragic demise. It is a true cautionary tale that we must learn from, for there are countless other threatened species that will suffer from the same human mistakes, and whose loss we shall not know until it is too late.

Meena Khandelwal offers an engaging and intimate portrait of extraordinary Hindu women in India who wear "ochre robes," signifying their renunciation of marriage and family for lives of celibacy, asceticism, and spiritual discipline. While the largely male Hindu ascetic tradition of sannyasa renders its initiates ritually "dead" to their previous identities, the women portrayed here are very much alive. They struggle with, and joke about, the tensions and ironies of living in the world while trying not to be of it. Khandelwal juxtaposes the common refrain that "in renunciation there is no male and female" with arguments that underscore the importance of gender. In exploring these apparent contradictions, she brings together worldly and otherworldly values within renunciation and argues that these create tensions that are at once emotional, social, and philosophical.

Does extinction have to be forever? As the global extinction crisis accelerates, conservationists and policy-makers increasingly use advanced biotechnologies such as reproductive cloning, polymerase chain reaction (PCR) and bioinformatics in the urgent effort to save species. Mendel's Ark considers the ethical, cultural and social implications of using these tools for wildlife conservation. Drawing upon sources ranging from science to science fiction, it focuses on the stories we tell about extinction and the meanings we ascribe to nature and technology. The use of biotechnology in conservation is redrawing the boundaries between animals and machines, nature and artifacts, and life and death. The new rhetoric and practice of de-extinction will thus have significant repercussions for wilderness and for society. The degree to which we engage collectively with both the prosaic and the fantastic aspects of biotechnological conservation will shape the boundaries and ethics of our desire to restore lost worlds.