According to World Science, some birds easily follow where human's eyes are going.
Jackdaws, which are related to crows and ravens, “seem to recognize the eye’s role in visual perception, or at the very least they are extremely sensitive to the way that human eyes are oriented,” said Auguste von Bayern of the University of Oxford and one of the researchers.
This seems to be helpful to predators and prey. Does your dog do that? If so, how could you prove it?
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