Scientists believe they may have found a genetic link that makes some dogs more friendly and affable than others.
In an article published in Science Advances, the authors said, although decades of research have focused on the unique relationship between humans and domestic dogs, the role of genetics in shaping canine behavioural evolution remains poorly understood.
Scientists compared canine genes with those of humans suffering from Williams-Beuren syndrome (WBS) – a condition classically characterised by hypersocial behaviour.
Building on previous work that compared genes of domestic dogs and wolves, the team identified variations in several genes that make dogs more affable than wolves and some dogs friendlier than others.
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