Hand Preference in Humans, Animals Explained

 "The predisposition, as it turns out, are tied to ocular dominance, or the tendency to prefer visual input from one eye over the other, according to the study, published in the latest Royal Society Biology Letters.

Ocular dominance, in turn, is driven by cerebral lateralization, which refers to how information processing is divided and coordinated between the brain's left and right hemispheres."
via Discovery News /continue reading