By identifying specific traits — such as size, coat color, and demeanor — and allowing only those animals to mate, we've created at least 167 different "breeds," or groups of dogs with unique ...
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Which dog breeds are smartest? Study uncovers unexpected insightsA new study published in the scientific journal Biology Letters reveals that working dog breeds, such as Siberian ... intellectual abilities. "In other groups [of species] relative brain size ...
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