Which of the following is a theory about how dogs formed relationships with humans?

• A. Early humans tamed and adopted
• B. Dispersing wolves form symbiotic relationship with humans
• C. Early wild adult proto-dogs adopt humans; villages formed through breeding and natural selection, with no flight
• D. Dogs were domesticated entirely by humans through genetic engineering

Answer: (C)

The main idea here is that dogs formed relationships with humans through a gradual, mutual adaptation rather than through direct human control or manipulation. The best explanation proposes that early wild adult proto-dogs began living near human groups, and over many generations villages formed because dogs that were less fearful and more tolerant of people tended to survive, breed, and pass on those traits. In this view, dogs effectively adopted humans as part of their own life strategy, evolving through natural selection within the human environment, with no need for humans to forcibly tame every animal. This account fits the idea of a slow, co-evolutionary process that yields a close, cooperative relationship between species. The other options imply human taming from the start, or only a loose dispersal without the village-based selection pattern, which don’t align as well with how domestication is thought to have occurred.