Could extinct species, like mammoths and passenger pigeons, be brought back to life? The science says yes. The evolutionary biologist and pioneer in ‘ancient DNA’ research guides us through the astonishing and controversial process of de-extinction. From deciding which species should be restored, to sequencing their genomes, to anticipating how revived populations might be overseen in the wild, Shapiro vividly explores the extraordinary cutting-edge science that is being used to resurrect the past.