The way dogs wag their tails betrays their feelings, researchers from the Chinese Academy of Sciences have found, writes “Daily Mail”.
The authors of the study used a motion tracking system to analyze 21,000 tail movements of ten beagle dogs. During the experiment, the animals spent three days with strangers who treated them well – they petted them, fed them and played with them.
Researchers have found that when dogs meet strangers, they wag their tails to the left. However, when they see people they have interacted with before, their tail movements are mostly directed to the right.
According to experts, dogs wag their tails on the right side due to the activation of the left hemisphere of the brain, which processes positive emotions. This means that if the tail wags to the right, a pet is happy and content. If his tail turns more to the left, it can be assumed that the dog is nervous or scared.