Summary
Highlights
Dogs possess an advanced social skill: understanding that humans perceive the world differently than they do. An experiment showed that dogs can discern what a person sees, bringing them the toy visible to the human, but choosing their own if the human's view is obstructed. This demonstrates their ability to differentiate between their own and human perspectives.
Yawning is linked to empathy, and dogs are unique in their ability to 'catch' a yawn from humans. While the exact reason is unknown, a theory suggests it evolved from ancient times when a prolonged yawn indicated human exhaustion, leading to artificial selection for dogs that understood and mirrored this signal, showing their bond and care for humans.
Dogs, along with humans and some macaques, exhibit a 'left-gaze bias' when assessing emotions. More remarkably, dogs are exceptional at understanding human pointing gestures, a capability that even chimpanzees struggle with. This ability developed over millennia of co-hunting, where dogs learned to follow human pointers to find prey, demonstrating their deep understanding of human non-verbal communication.
Dogs are highly sensitive to human gestures and can even anticipate what we want by observing our gaze. They also exhibit complex emotions like jealousy, previously thought to be exclusive to primates due to its link with self-awareness. An experiment showed dogs refusing to perform tricks if a peer was rewarded while they weren't, displaying clear signs of distress and irritation, indicating their capacity for rivalry.