Roughly translated by TWIN Observer
Untrained dogs are worse off collaborating than their wild relatives the wolves. In an experiment where two animals would pull a rope at each end for food, the dogs failed, according to the study published in the scientific journal PNAS, reports the Science Radio. The wolves, on the other hand, showed perfect cooperation, especially if they were equal in rank in the pack.
The test was done with dogs similar to the wolves growing up in the wild. Dogs trained by humans, however, managed better in the experiment.
Wild wolves hunt and raise their puppies together, which is not a behavior seen by wild dogs.