Dave via Wikimedia Commons // CC BY-SA 2.0
Dave via Wikimedia Commons // CC BY-SA 2.0

DNA Tests Show Many Shelter Dogs Are Mislabeled as Pit Bulls

Dave via Wikimedia Commons // CC BY-SA 2.0
Dave via Wikimedia Commons // CC BY-SA 2.0

Pit bulls can be affectionate, docile pets, but you wouldn’t know it from the public perception and media coverage of them. You also might not know how these dogs are penalized—or how that penalty spreads to dogs who just happen to look like them. In a paper published in The Veterinary Journal, researchers say animal shelter staff frequently mislabel non-pit-bull dogs as pit bulls.

“Pit bull” is not a breed but a type that describes several breeds. The American Staffordshire terrier, Staffordshire bull terrier, and American pit bull terrier are all pit bulls. These dogs have been maligned as violent and aggressive by nature—a reputation they have not earned. But news reports disproportionately report the culprits of dog attacks as pit bulls, even when, as scientists note, it’s unlikely that most of them are. As the researchers cite, about 46 percent of American dogs are mutts, but 90 percent of dogs named by the media in attack stories were labeled with a single breed or type (often pit bull). The numbers just don’t add up, they say.

Discrimination against pit bulls often has deadly consequences for the dogs. There are outright bans on pit bulls in some parts of the country, which means that shelters won’t take them in, and they’re more likely to be put down. But many places rely not on evidence but on educated guesses and gut feelings to determine which dogs are pit bulls and which aren't.

“Unlike many other things people can’t quite define but ‘know when they see it,’ identification of dogs as pit bulls can trigger an array of negative consequences, from the loss of housing, to being seized by animal control, to the taking of the dog’s life,” lead author Julie Levy said in a press statement. “In the high-stakes world of animal shelters, a dog’s life might depend on a potential adopter’s momentary glimpse and assumptions about its suitability as a pet. If the shelter staff has labeled the dog as a pit bull, its chances for adoption automatically go down in many shelters.”

Levy and her colleagues suspected that many shelter pit bulls were being mislabeled. They wondered just how consistently and accurately veterinarians and shelter staff could identify pit bull breeds.

To find out, they went to four Florida animal shelters, which in the previous year had admitted from 2520 to 10,154 dogs. They recruited 16 workers at each, including four veterinarians, who were tasked with labeling newcomers to their shelters. Each participant completed a questionnaire about their shelter experience and any training they might have had in breed identification.

At each shelter, the researchers picked out 30 dogs of all different sizes, shapes, and colors, and noted how each dog had been identified. They brought shelter workers from cage to cage and asked them to name each dog’s breed based on its appearance. If the assessor felt strongly that the dog had a secondary breed, they could note that. “Mixed breed” was also an option when they had no idea.

A vet on the research team examined all of the dogs, noting their height, weight, age, color, and other characteristics. The vet also drew a small amount of blood from the dogs and sent it to a lab that could test their DNA.

The researchers’ hypothesis was correct. “We found that different shelter staffers who evaluated the same dogs at the same time had only a moderate level of agreement among themselves,” Levy said in the press release. And they fared even worse against the DNA analysis.

Shelter workers were able to spot real pit bulls and pit bull mixes 33 to 75 percent of the time, depending on the worker. But they labeled non-pit-bull dogs as pit bulls up to 48 percent of the time. That’s almost a 1 in 2 chance that a dog with no pit bull DNA could be lumped in with the unfortunate pit bulls.

Pit bull DNA does not mean that a dog will be aggressive—and neither does simply looking like a pit bull. “A dog’s physical appearance cannot tell observers anything about its behavior,” Levy said in the press release. “Even dogs of similar appearance and the same breed often have diverse behavioral traits in the same way that human siblings often have very different personalities.”

The researchers recommend that shelters make more use of the “mixed breed” category when labeling new dogs. They also recommend that public safety should shift its focus from persecuting specific breeds (and their lookalikes) to teaching people how to avoid dog bites.

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Mark Ralston, AFP/Getty Images
How a Hairdresser Found a Way to Fight Oil Spills With Hair Clippings
Mark Ralston, AFP/Getty Images
Mark Ralston, AFP/Getty Images

The Exxon Valdez oil tanker made global news in 1989 when it dumped millions of gallons of crude oil into the waters off Alaska's coast. As experts were figuring out the best ways to handle the ecological disaster, a hairdresser from Alabama named Phil McCroy was tinkering with ideas of his own. His solution, a stocking stuffed with hair clippings, was an early version of a clean-up method that's used at real oil spill sites today, according to Vox.

Hair booms are sock-like tubes stuffed with recycled hair, fur, and wool clippings. Hair naturally soaks up oil; most of the time it's sebum, an oil secreted from our sebaceous glands, but it will attract crude oil as well. When hair booms are dragged through waters slicked with oil, they sop up all of that pollution in a way that's gentle on the environment.

The same properties that make hair a great clean-up tool at spills are also what make animals vulnerable. Marine life that depends on clean fur to stay warm can die if their coats are stained with oil that's hard to wash off. Footage of an otter covered in oil was actually what inspired Phil McCroy to come up with his hair-based invention.

Check out the full story from Vox in the video below.

[h/t Vox]

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Bristly
A New Chew Toy Will Help Your Dog Brush Its Own Teeth
Bristly
Bristly

Few pet owners are willing to sit down and brush their pet's teeth on a regular basis. (Most of us can barely convince ourselves to floss our own teeth, after all.) Even fewer pets are willing to sit calmly and let it happen. But pet dental care matters: I’ve personally spent more than $1000 in the last few years dealing with the fact that my cat’s teeth are rotting out of her head.

For dog owners struggling to brush poor Fido’s teeth, there’s a slightly better option. Bristly, a product currently being funded on Kickstarter, is a chew toy that acts as a toothbrush. The rubber stick, which can be slathered with doggie toothpaste, is outfitted with bristles that brush your dog’s teeth as it plays.

A French bulldog chews on a Bristly toy.
Bristly

Designed so your dog can use it without you lifting a finger, it’s shaped like a little pogo stick, with a flattened base that allows dogs to stabilize it with their paws as they hack at the bristled stick with their teeth. The bristles are coated in a meat flavoring to encourage dogs to chew.

An estimated 80 percent of dogs over the age of 3 have some kind of dental disease, so the chances that your dog could use some extra dental attention is very high. In addition to staving off expensive vet bills, brushing your dog's teeth can improve their smelly breath.

Bristly comes in three sizes as well as in a heavy-duty version made for dogs who are prone to ripping through anything they can get their jaws around. A Bristly stick costs $29 and is scheduled to start shipping in October. Get it here.

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