Think humans are the only ones capable of deception? Think again! Research has shown that several animals can trick others to get what they want – and our beloved dogs are no exception. From fake-barking to get another dog’s spot to more sophisticated forms of manipulation, our four-legged friends have mastered the art of clever deception.
But surely our loyal, faithful best friend wouldn’t deceive us… would they?
Actually, yes – and that’s exactly what researchers at the University of Zurich, Switzerland, discovered in their fascinating study. As it turns out, when treats and food are involved, even the strongest bonds might take a temporary backseat to a dog’s clever thinking!
How Scientists Proved Dogs Can Deceive Humans
The setup of this clever experiment involved dogs and their owners, three mysterious boxes, and two research assistants playing very different roles. Inside these boxes, the researchers would place either a tasty sausage (a true doggy delicacy), some regular kibble (not quite as exciting), or nothing at all.
The magic of this experiment lay in how the two research assistants interacted with the dogs. One played the role of a generous friend – the “cooperator” who would always share whatever treat the dog chose. The other took on the part of the “competitor” who would keep all the goodies for themselves.
Before the main experiment began, the dogs had time to learn about these two very different humans. They quickly figured out who was who – dogs are incredibly perceptive when it comes to understanding who might share a treat!
The actual experiment unfolded like a well-choreographed dance. First, the owner would take their dog on a tour of the boxes, letting them peek inside each one to see what treasure it held. Then, they’d hand their pup over to one of the assistants before disappearing from view. This moment was when things got interesting.
The Art of Canine Deception
Imagine being in the dog’s paws for a moment. When meeting the cooperative assistant, the choice seems obvious. These dogs would happily lead them straight to the sausage, tails wagging with anticipation of the guaranteed treat.
But when faced with the competitive assistant, something remarkable happened. Our clever canines showed they could think strategically, often leading this treat-keeper to empty boxes or the less desirable kibble. Why? Because they knew that after this interaction, their owner would return and ask them to choose a box again – and this time, they’d get whatever was inside.

The results were crystal clear. Dogs consistently showed the cooperative assistant where the best treats were hidden, but deliberately misled the competitive one, saving the knowledge of the sausage’s location for their owner’s return. This clever behavior reveals something extraordinary about our canine companions: they can not only think about the consequences of their actions but also plan ahead and act against their immediate desires for a better outcome later.
Understanding Our Clever Companions
What truly surprised the researchers wasn’t just that dogs could be deceptive – it was how quickly they figured out human intentions compared to primates in similar studies. This doesn’t mean dogs are necessarily smarter than our primate cousins. Instead, it shows just how well dogs have come to understand us through thousands of years of companionship. They’ve become experts at reading human behavior and adapting their own actions accordingly.
This research opens fascinating windows into canine cognition, helping us better understand how dogs think and process information. It’s particularly valuable for developing more effective training methods and solving common behavioral issues. The more we understand about how our furry friends think, the better we can build and strengthen our bonds with them.
If you found this peek into your dog’s clever mind as fascinating as we did, please share it with other dog lovers. After all, understanding our canine companions helps us build even stronger relationships with these remarkable animals.
Further Reading
- Main article: Heberlein MTE, Manser MB, Turner DC. Deceptive-like behaviour in dogs (Canis familiaris). Anim Cogn. 2017 May;20(3):511-520.