The brachycephalic airway syndrome is so serious and common that you might wonder why pitbulls evolved that way in the first place. The most likely explanation is part of selecting for muscularity is increasing metabolic rate and one way to do so is to force the dog to pant.
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Please don't compare Slavs to bulldogs. Slavs aren't an aggressive, violent, inbred people at all. Rich biodiversity, culture, and an infamously cool temperament. West Slavs have unusually stable familial elements too, Poles pair bond more than any other group in Europe
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VO2? I doubt it
End of conversation
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