"Mixed-breed dog jumping over a wire fence with a dog training clicker in its mouth, while being watched by a young Jack Russell Terrier bitch sitting beside it in the snow, Doberitzer Heath, Wustermark, Brandenburg, Germany, Europe"

Labrador Retriever, female dog, holding a training dummy in her mouth

Labrador Retriever, female dog, holding a green training dummy in her mouth

"Belgian Shepherd dog, police dog, guard dog with a police collar, locking jaws during an exercise with a pretend offender in a protective suit, Germany, Europe"

Labrador Retriever cross dog

Spitz crossbreed, standing on a meadow

Mixed-breed dog during longeing training