DOGS have been bred for different reasons, so it is hard to compare one breed's intelligence with another.

If herding is used as a sign of intelligence, a collie would be considered more intelligent than a beagle.

However, if tracking were used as the measure, then the collie would be "less intelligent" than the beagle.

But some scientists do believe there is a more objective measure of intelligence in dogs and they have developed a dog IQ test that measures instinctual intelligence and problem-solving intelligence.

There is also a test that measures working and obedience intelligence and can be set according to the breed being tested.

In the book, The Intelligence of Dogs, Stanley Coren lists the top 10 most intelligent dogs, according to their IQ test results: border collies, poodles, German shepherds, golden retrievers, Doberman pinschers, Shetland sheepdogs, Labrador retrievers, papillons, rottweilers and Australian cattle dogs.

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