Why do people discriminate against dark pets?

Black Dog Syndrome is the name shelter workers have given to the tendency of dark-furred pups to languish in kennels while their lighter-furred brethren get adopted. “The effect is very real,” says Mirah Horowitz, executive director and founder of Lucky Dog Animal Rescue. “We recently had a litter of five very cute, very fluffy puppies, two yellow and three black. And the yellow ones all went immediately, but for the black ones it took weeks.” Black dogs get euthanized at higher rates. They linger at pounds and adoption agencies for longer than light-colored dogs, and they are less likely to find a home. Marika Bell, director of behavior and rehoming for the Humane Society of Washington, D.C., says that the organization has been tracking animals that have stayed at their shelters the longest since March 2013. They found that three characteristics put a pet at risk of becoming one of these so-called “hidden gems”: medium size, an age of 2-3 years, and an ebony coat. A 2013 study by Penn State psychologists revealed that people find images of black dogs scarier than photos of yellow or brown dogs — respondents rated the dark-furred animals less adoptable, less friendly, and more intimidating.