I, Mammal: The Story of What Makes Us Mammals

A human being is a mammal. Most of us appreciate that at some level. But what does it mean to have more in common with a horse and an elephant than with a parrot, a snake or a frog? Why do only mammals have hair, mammary glands and three bones in their middle ears? Liam Drew takes a personalised quest to understand what it means to be a mammal, exploring the different traits that uniquely define them.