Some Labradors have a predisposition to obesity

Much like their human owners, dogs are experiencing an obesity epidemic. One recent study of British pooches found that one in 14 is too pudgy, putting them at higher risk of conditions like arthritis, shortening their lifespan and making walks more of a drag. Certain breeds, like Labradors, are particularly prone to fatness. Purebred Labs are around 70% more likely to be overweight than mixed-breed mutts. A new study, published in the journal Science Advances, has identified one reason why—a genetic quirk makes some Labradors prone to obesity.