What is a dog?

About dogs. What is a dog? ; The world is full of village dogs ; Why do village dogs all look alike? ; What is a niche?

Behavioral ecology. Behavioral ecology of dogs ; The cost of building a dog ; The cost of feeding a dog ; The cost of reproduction ; Avoiding hazards and their costs

That special relationship between people and dogs. The symbiotic relationship ; Dogs adopt people (and other animals) ; People adopt dogs ; People breed special dogs ; Breed genes stray into the village dog population ; Dog genes stray back into the wild

Summary. Where and why are all these dogs? ; What should we do, if anything, with all the dogs?