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Man’s Best Friend: The History of Dog Domestication

Khalid Elhassan June 3, 2025 16 min

17. What Is Self-Domestication?

Dogs - Domestic dogs can look quite different from their wild relatives — Domestic dogs can look quite different from their wild relatives. The Atlantic

Self-domestication is a process by which a wild species evolves traits associated with domestication, such as reduced aggression, smaller size, and more juvenile features, without direct human intervention. Instead, natural selection favors individuals within a population that are better adapted to live near humans. Over generations, such traits accumulate and lead to a population that is behaviorally and even physically different from its wild ancestors.

In the context of dogs, the self-domestication hypothesis is that wolves did not begin the journey to domestication because humans captured or raised them. Instead, some wolves began to exploit human refuse at the margins of hunter-gatherer camps. Those “camp-following” wolves were less fearful and more tolerant of humans than their more aggressive peers. Over time, these behavioral tendencies became more pronounced, and led to the emergence of proto-dogs.

Written by

Khalid Elhassan

A lifelong history buff, I developed a particular passion for WW2 history as a child, when I spent hours listening to my grandfather, enraptured, as he recounted his wartime experiences in the British East African Campaign and with the British 8th Army in North Africa.

I graduated with a history BA from George Mason University, then went on to get a JD from the University of Virginia School of Law. After lawyering for a decade, I moved to sunny Rio de Janeiro and a less demanding career, opening a tourism agency in Copacabana.

A big chunk of my free time is spent blogging (you can follow me on Quora https://www.quora.com/profile/Khalid-Elhassan ) or freelance writing, mostly about my favorite subject, history.