Produced in association with the Natural History Museum, London, this book compares the biggest and smallest plants and animals in the world, showing why size is important for their survival. Find out about a range of animals from huge elephants, lengthy crocodiles and ginormous whale sharks to small shrews, tiny hummingbirds and microscopic fairy flies. See each in their own habitat and discover how they have grown so big or small. Covering fish, birds, trees, flowers, insects and even dinosaurs, this book is a lovely introduction to the diversity and extremes of nature in our world.