After his parents are killed, Kit, a young raccoon, sets off for the city with a stone that may be the key to finding the Bone of Contention, a legendary object that is proof of a deal giving the wild animals the rights to Ankle Snap Alley, which the dogsand cats--known as the flealess--want back and are willing to kill for.

Humans are mammals. Most of us appreciate that at some level. But what does it mean for us to have more in common with a horse and an elephant than we do with a parrot, snake or frog? After a misdirected football left new father Liam Drew clutching a uniquely mammalian part of his anatomy, he decided to find out more. Considering himself as a mammal first and a human second, Liam delves into ancient biological history to understand what it means...