Birman cat


This breed is not known for being polydactyl though the mutation can spontaneously occur in any cat breed Hypertrophic Cardiomyopathy (HCM):HCM is an abnormal thickening of the left ventricle of the heart that leads to improper blood flow. It is the most common cause of heart disease in cats and can result in sudden death. HCM is the only known breed specific condition seen in Birman cats.
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