A London university has developed an IQ test for dogs that could pave the way for breakthroughs in our understanding of the links between intelligence and health.
The London School of Economics, along with Edinburgh University, has discovered that dog intelligence functions in a similar way to human intelligence.
Recent studies have shown smarter people tend to live longer.
If scientists can prove this is the same in dogs then they can use them to study long-term health problems such as dementia.
Dr Rosalind Arden, a research associate at the LSE said: "We asked the question, if a dog is good at one test does it tend to be better than average at the other test? And we found that yes that's true.
This is the first step in trying to develop a really snappy, reliable dog IQ test, and that has got implications that aren't obvious at first."
Sixty eight border collies were given a series of cognitive tasks, including finding their way to food behind a barrier and learning to choose a bigger portion of food.