รายละเอียด(อย่างย่อ) How long have mammals existed on earth? What is the difference between an even-toed ungulate and an odd-toed ungulate? How and why does the mole build its tunnels under the earth? Children and adolescents who have an interest in mammals will find the answers to these and many other questions in this book. From monkey, bat and coyote to sheep and tapir - almost all genera and species of mammal, their behaviour and their habitat are vividly described and clearly explained.