seeds De-extinction event: York groundsel, eradicated in wild, re-established there from seeds Rob Beschizza
Science The Tasmanian Tiger's been extinct since 1936. Should we bring it back with science? Elías Villoro
genetic engineering Meet the woolly mouse, the first step toward bringing back the woolly mammoth from extinction Allan Rose Hill
marsupials New sighting of a thylacine, a thought-to-be-extinct carnivorous marsupial Mark Frauenfelder
science fiction Superb science fiction story in the form of a list of failed attempts to stave off climate extinction Cory Doctorow