Incoming Resources
- A dog in the cave, coevolution and the wolves who made us human, by Kay Frydenborg
- The history of the world in fifty dogs, Mackenzi Lee ; illustrations by Petra Eriksson
- Dog's best friend, annals of the dog-human relationship, Mark Derr
- Once a wolf, the science behind our dogs' astonishing genetic evolution, Bryan Sykes
- How the dog became the dog, from wolves to our best friends, Mark Derr
- The pawprints of history, dogs and the course of human events, Stanley Coren
- Cats and dogs, National Geographic Television ; National Geographic Channel