Everyone has heard of a polar bear or a cheetah, but what about a white rhinoceros or a golden bamboo lemur? In Planet Zoo, Simon Barnes presents us with a challenging and moving account of 100 animals threatened by extinction and in need of human help. Each chapter presents us with the likely impact of the animal¹s disappearance: how the planet itself ultimately depends on the creatures that inhabit it. Planet Zoo is also a celebration of the wonderful diversity of the animal world, introducing us to birds and beasts that few of us may be aware of but which are fighting for survival. Simone Barnes¹ narrative is captivating and passionate, while Alan Marks¹ exquisitely detailed watercolors make this a visual feast. An important book for anyone who cares about animal conservation, natural history, and the future of our planet.