Cancer is at least as common in dogs as it is in people. Selective breeding of dogs leaves particular groups at high risk of certain cancers. For example, Great Danes have about a 60-fold increase in risk of osteosarcoma compared with other dogs.
Credit: Source: A.L. Shearin and E.A. Ostrander/Disease Models & Mechanisms 2010; Chow Chow, Boxer, Great Dane: Aaltazar/istockphoto; Scottish Terrier: E. Feliciano
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