The people going to extraordinary lengths to understand and protect canids, from preventing wild dogs dying of grief in South Africa to protecting the tiny Darwin's fox.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

One family, 37 faces: from the Arctic wolf to the talkative dhole, the tiny fennec fox to the long-legged maned wolf, this is the definitive celebration of dogs in the wild.