Pugs have wrinkled faces because Chinese breeders purposely bred them that way. They actually aimed to create a pattern of wrinkles on the dogs' foreheads, which resembled the Chinese character for “prince.”
Why do pugs have squished noses?
The broad head shape seen in these dogs did not evolve naturally, and is instead the result of selective breeding. The facial structure of flat-faced dogs forces the breathing passages to be very compact. Vets are long warned against buying fashionable 'flat-faced' dogs amid concerns over their health and welfare.
What are pugs flat faces caused by?
Researchers have long known that dogs characterized by flat faces are the result of selective breeding. The pug, for instance, was selectively bred so it will feature an extremely flat face.
Why do dogs have squished faces?
The “cuteness” of flat-faced—the technical term is brachycephalic—dogs comes from the fact that they have been bred to retain certain infantlike features into adulthood, such as round skulls, prominent eyes, small noses and jaws, and pudgy limbs.
Why are pugs deformed?
Pugs have a genetic weakness to demodectic mange (a pretty nasty skin condition caused by mites). Their curled tail makes them susceptible to hemivertibrae - misshapen backbones which cause spine bending and instability, neurological disorders, back leg paralysis, incontinence, and pain.
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