Over many thousands of years, a species of animal that shared a close relationship with wolves slowly morphed into something that loves to curl up in your lap, get belly rubs, and eat kibble three times a day.
, Duke University anthropologist Brian Hare took the concept of domestication syndrome a step further, speculating whether it might apply to us humans as well.
Consequently, there was increased pressure on our ability to communicate, facilitating complex language skills. Changes in how our brains function may have had an impact on our skull's size and shape, not all that dissimilar to how skulls have changed in domesticated animals. The authors of this study supplied an extensive laundry list of similarities between the groups that serve as evidence of a shared domestication process. For example, in all three cases, the jaw and cranium have changed shape, with jaws shortening or skulls becoming less elongated, and teeth reducing in number.
The examples provided may be simply cases of cherry-picking what fits. For example, other animals that have undergone domestication develop into breeds with floppy ears and curly tails."domesticated species do not usually show the full suite of features associated with domestication", as different blocks of traits can fragment and no longer undergo selection.
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