In this funny, fact-filled book for readers 7 to 10, zoologist and television presenter Nicole Davies looks at how animals are suited to life under extreme conditions, from penguins and polar bears in cold climates to thermophile bacteria who live in volcanoes, and desert camels who endure both broiling sun and freezing nights. Here too are deep-diving mammals and other sea creatures, trees at least 5,000 years old, and tiny water bears, which can survive the vacuum of space. Neal Layton illustrates the book with antic cartoons and voice balloons.