All the members of the dog family - domestic dogs, wolves, coyotes, dingoes - are very aware of territory. A group must control its own territory - you can't have others taking it from you, because then you won't have enough food.

Every dog might wish to be Dog One, but like us, most dogs want membership in the group even more than they want supremacy over others.

You can look at your dog and see that it's thinking and has strong feelings. And if it does, so do wolves. And if wolves do, so do elephants. People aren't the only beings that think and feel.

As far as I'm concerned, I own my dogs as I own my body. My legs are with me when I take a shower, and I feel no shame. If I were to lose one, I'd grieve, and people would send sympathy cards, but it would be my condition that evoked the sympathy, not the fate of the leg. That's like losing a dog.

Primates feel pure, flat immobility as boredom. But dogs feel it as peace.

Dogs are a window on the natural world.