ISBN-13: 9781770092402 / Angielski / Miękka / 2008 / 380 str.
Mammals are the animals that most people come to wilderness areas to see. They range in size from the pygmy shrew (2g) to the blue whale (120 tonnes). But what makes a mammal a mammal - indeed why is the blue whale not a fish? How does the elephant's trunk work?