EarthConservation dilemmas: Is a shopping mall as alive as a wolf? It's getting tricky to work out what we mean by "alive" and worthy of conservation efforts. Two new books explore this strange frontier CultureLab
LifeHow to Clone a Mammoth: But should we? With the science nearly upon us, a new book highlights the ethical and logistical issues of bringing back proxies of extinct animals such as the woolly mammoth CultureLab