Dear MEL Topic Readers,
Dogs' eyes evolve to appeal to humans
You know it.
Dogs often make an attention-grabbing
expression or noise when they want their owner to do something for them, such
as petting and feeding. You may take it for granted, but researchers found that
such infant-like expression is a result of evolution over millenniums.
Since domesticated dogs no longer need to
develop strong jaw muscles to bite other animals or tear the meat off the bone, they
seem to have developed a muscle to raise the inner eyebrow over time instead to
make a non-verbal appeal to humans, just like human infants do. Indeed, they seem
to have learned such subtle and delicate, yet effective communication means to
get along with, or even take advantage of human feeling.
Are they getting smarter than our cousins in
the wild, apes or monkeys, that share the same ancestor? Maybe, at least when
it comes to living with humans.
Over the next few millenniums, humans may be trained
to do what dogs’ eyes tell them to do.
Enjoy reading the article and look at dogs’ eyes
carefully when they demand something.
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