From Inverse.com:

Wolves are big and powerful, their packs work as cohesive teams, and they’ve been a symbol of fear for centuries. (Big Bad Wolf, anyone?) So how is it that dogs, our goofy little pals, managed to evolve from them? Through observing the key differences between wolves and dogs in a study from Royal Society Open Science, a team of scientists has been able to reverse engineer an explanation for this change, and it’s largely a social one.

 

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