Two unusually long-legged cats have led Cornell University scientists to the first genetically confirmed cases of Marfan syndrome in domestic felines. The cats, which are brothers, were found to carry two altered copies of a gene associated with the rare connective tissue disorder.
The condition is well known in humans, where it can affect the heart, eyes, and skeleton. In these cats, the long limbs were a visible clue to an underlying genetic cause, prompting the researchers to investigate their DNA.
This finding provides a feline model for Marfan syndrome and may help veterinarians recognize the disorder in other animals. It also underscores how a striking physical trait can point to a deeper biological condition, even in a household pet.