This is by no means a jolly read - with vivid stories, Liz Kalaugher takes us into the world of zoonotic diseases, both where humans are infected by largely wild animal diseases and where we spread disease among other species. The book voyages around the world and into the prehistoric past (entertainingly in a chapter that begins at Bristol bus station, the way all prehistory stories probably should), suggesting that perhaps the Neanderthals were wiped out by a lack of disease resistance. Kalaugher takes us on a genuinely engaging voyage of discovery, taking in a diverse range of fauna from honeycreepers and Tasmanian devils to ferrets, frogs and foxes. If, like me, you are distinctly averse to reading about anything medical, the thought of encountering avian pox, plague, West Nile virus and more can be a little unnerving, but on the whole the stories are more about the animals and their environment than too much medical detail. Probably the weakest part of the book, as is often the ca...