The horses react to the expressions of the eyes of their fellows, and have another means of expression, which people do not have – the position of the ears. Unlike humans, the horse can move his ears, notes Current Biology.
In this experiment, the horse was able to find food in one of the two containers, offered to him. Where to look for food told him a photo of another horse that was placed between the containers.
The biologists discovered that the horse is guided by the expression of the eyes and the ears of the horse, shown on the picture, which position helped him to find out in which container should look for food.