Debilitating effects of disease on toy dog breeds uncovered

A new study has identified the specific effect Chiari malformation has on the shape of a dog’s skull and brain. This condition has become prevalent as a result of selective breeding and affects many toy dog breeds which have been bred to look more doll-like, including Griffon Bruxellois, Cavalier King Charles Spaniels, Chihuahuas and their crosses.

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