Are dogs left- or right-handed? What the science says

The vast majority of people use one hand or the other for most things—and for nearly 90% of the human population this is the right hand. Some 10% to 13% of humans are left-handed, with men being three times more likely ...

Genomic analysis reveals true origin of South America's canids

South America has more canid species than any place on Earth, and a surprising new UCLA-led genomic analysis shows that all these doglike animals evolved from a single species that entered the continent just 3.5 million to ...

Genetic clues to how dogs became man's best friends

Two mutations in the melanocortin 2 receptor gene—which is involved in the production of the stress hormone cortisol—may have played a role in the domestication of dogs by allowing them to develop social cognitive skills ...

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