TV nature programmes leave me cold, but I was quite interested in Walking with Dinosaurs , which arguably picked up on the impact of Jurassic Park to give us a vivid visual exploration of dino life. The main problem with it was that the makers made assertions as if fact that could not have been more than hypothesis about the details of dinosaur appearance and behaviour, so the subtitle of this book 'What they did and how we know ' (my italics) really caught my attention. To be honest, my first thoughts were not wholly positive when in the first page of chapter 1 I read 'Throughout this book I will refer to dinosaurs and Dinosauria as a paraphyletic group' - although David Hone goes on with 'therefore excluding both Mesozoic and modern birds unless explicitly stated otherwise' - most potential readers, like me probably still aren't really clear what paraphyletic means. This is sold as for the general public, but a more care with the editing might have ensure...