Mammoths and sabertooth cats are but two icons of an assemblage of large animals, or megafauna, that disappeared between roughly 50,000 to 12,000 years ago. As with all mass extinctions, several explanations have been put forward, but one man and his idea take centre stage in these discussions: Paul S. Martin’s overkill hypothesis. In End of the Megafauna, palaeomammalogist Ross D.E. MacPhee carefully scrutinises this idea, weighs up the arguments for and against, and explains its enduring allure. To quote Huxley, is this another example of “the slaying of a beautiful hypothesis by an ugly fact”?
How to Clone a Mammoth, Resurrection Science, Bring Back the King, and now Rise of the Necrofauna. There has been no shortage in recent years on books written for a general audience that talk about de-extinction: the controversial idea of resurrecting extinct species using recent advances in biotechnology. Futurist Alex Steffen catchily refers to them as the necrofauna mentioned in the book’s title. Rather than focusing on the technical side of things, radio broadcaster and writer Britt Wray here foremost discusses the ethical, legal and other questions this idea raises. And once you start thinking about it in earnest, it raises many thorny issues. No wonder it has been a controversial issue.