9781422274965

The cairn terrier was developed in Scotland to seek out animals that invaded small mounds of stones, called "cairns," that were used to mark property boundaries or graves.

The Labrador retriever is a short, solid dog approximately 22 inches (55.8 centimeters) high and weighing 55 to 75 pounds (25 to 34 kilograms).

Sometimes a yellow pup appears in an otherwise black litter.

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