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An explosives and drug-sniffing police dog investigating luggage behind a car.
Close-up view of a service dog on a leash, wearing a harness and muzzle, near the owner at the counter.
Travelling With Pets.walking with their pets .commuting and shopping
The police officer and service dog go to the airport lounge.
Young service dog on a ship
Guide dog waiting for it's boss to be ready with a business conversation
Animal trainer man teaching tricks for dog at public park
Owner with adorable Labrador Retriever indoors at dog show, closeup
Soldier petting a dog in a sheltering
dog training for obedience discipline in a club
K-9 Police DogDogs & Puppies
Black molecular dog on a leash with its owner during a search mission
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Female instructor training a young dog for a guide dog, blind people mobility assistant, on the city street.
Smiling dog handler and a Belgian Malinois looking at a small rubber ball lying on the artificial grass
Service Dog at Death Valley
Side shot of cute American bulldog enjoying his treat snack after an obedience training with his pet owner
young rottweiler training in the nature for security
A volunteer working at an animal shelter.
Aurora, CO, USA - July 26, 2015: Attack Dog at the Arapahoe County Fair.
Woman living with visual disability with service dog in training. Dog is a six months bull mastiff. Dog trainer’s dog is a german shepherd. They are in in a public park, shaking hands beside the dogs. Horizontal full length outdoors shot with copy space. This was taken in Montreal, Quebec, Canada.
A therapy assistance poodle at the park enjoys being petted by people.
canine member of a search and rescue team leashed to its handler stands ready to assist in finding missing people
Rottweiler
Travelling With Pets.walking with their pets .commuting and shopping
young rottweiler training for protection sport and police
An explosives and drug-sniffing police dog investigating a abandoned suitcase.
Service Dog playing on a croquet court
A policeman with his police dog
Doberman Pinscher playing with people
Free Images: "bestof:Test Arena for Robots and Dogs (5940489287).jpg Police Officer Michael Millsaps Jr of the Amtrak Police Department rewards his dog Bak for finding a hidden gun"
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