dogs

Barbra Streisand plays with her dog Samantha near her son, Jason Gould (left), and husband, James Brolin, in Paris in 2007. Samantha died last year, but Streisand now has clones of the dog. Philippe Wojazer/Reuters hide caption

Handler Bill McFadden shows Flynn, a bichon frise, in the best in show competition during the 142nd Westminster Kennel Club Dog Show on Tuesday at Madison Square Garden in New York. Mary Altaffer/AP hide caption

A dog leaps into the Masters Agility Championship in New York City. Stephanie Keith/Getty Images hide caption

John Locke lounges at home. Owners often say they don't care if their pet is "fat" — there's just more to love! Rebecca Flanagan hide caption

Dogs rescued from floodwater wait to be transferred to a shelter after torrential rains pounded Southeast Texas following Hurricane and Tropical Storm Harvey on Sept. 3, 2017 in Orange, Texas. Scott Olson/Getty Images hide caption

An FDA report warns dog owners of the dangers of "bone treats," which can consist of full or partial pieces of animal bone. Andres Kudacki/AP hide caption

Dallas Seavey poses with his lead dogs Reef (left) and Tide after finishing the Iditarod Trail Sled Dog Race in Nome, Alaska, in March 2016. Seavey denies he administered banned drugs to his dogs in this year's race and has withdrawn from the 2018 race in protest. Mark Thiessen/AP hide caption

Lulu photographed during explosives training. Central Intelligence Agency hide caption

After the 45th Iditarod Trail Sled Dog Race in March, the race board says, several dogs from a single team tested positive for a banned substance. Ellamarie Quimby/AP hide caption

One of the most famous African dog breeds, the basenji is closely related to street dogs found throughout West Africa. Tara Gregg/EyeEm/Getty Images hide caption

At almost 17 inches, this boxer named Brandy had the longest tongue on a dog ever, according to Guinness World Records. She is pictured with owner John Scheid in Sterling Heights, Mich., in 2001. Jamie Charbeneau/AP hide caption

Campylobacter infections are common in dogs, cats and people. joshblake/Getty Images hide caption