Canine Domestication, Social
Structure and Behavioural Influences
The Self-Domestication Hypothesis
The Natural Selection Hypothesis
The ancestors of domestic dogs initiated their own domestication through natural selection. Some tamer wolves (Fig. 1) exploited human settlements by scavenging refuse and food waste, a trait free-ranging dogs (FRD’s) and some companion dogs thrive on. Over generations, wolves became less antagonistic and eventually became increasingly comfortable around humans, gaining a survival advantage (Mech & Janssens, 2022).
Domestication
Tameness is essential for domestication. Domestic animals differ from their wild ancestors. For example, a tamed wolf is not yet a dog, indicating that taming is only the initial phase of full domestication.
The domestication process involves the following steps:
1. gaining complete control over individual animals,
preferably by taming;
2. assembling tamed (or otherwise controlled)
groups of animals containing both sexes and
keeping them together over periods long enough
to start intra-group breeding; and
3. continued intragroup breeding of the tame (or
otherwise controlled) stock and avoiding large-scale
cross-breeding with the wild population.
​
​
Figure. 1. Uerpmann, Hans-Peter, 2008, ANIMAL DOMESTICATION, Encyclopedia of Archaeology, Academic Press, Pp 434-445, https://doi.org/10.1016/B978-012373962-9.00080-7.
Supporting Evidence:
-
Less fearful wolves were more likely to survive near settlements and reproduce, supporting the self-domestication hypothesis. (Mech & Janssens, 2022).
-
Research shows some feral canids, like urban foxes and coyotes, exploit human environments with reduced fear of humans and altered foraging. (Górski et al., 2026).
-
The Russian Fox Experiment by Dmitry Belyaev is well known. Breeding tame foxes leads to physical changes like floppy ears, curly tails, coat colour differences and seeking human contact. Selective breeding for tameness produces behavioural and physical traits associated with domestication (Trut, 1999).
-
Genomic Evidence: Studies found genetic changes in dogs linked to neural crest cell development, potentially explaining domesticated traits and tameness (Pendleton et al., 2018).
Criticisms and Counter-Evidence:
-
Genetics: Ancient genomes from Roman, pre-colonial Americas and Arctic dogs have no evidence of wolf ancestry (Lin et al., 2025).
-
Some archaeological sites, like those with intentional canid burials, suggest closer human-wolf ties earlier than the self-domestication model implies (Perri et al., 2020).
-
The complexity of domestication involves more than just natural selection for tameness; domesticated dogs display a broader range of behaviours and traits than other canids (Almquist et al., 2026; Weber et al., 2026).
