Currently, it is believed that the preference for one or another part of the body is common to the entire animal kingdom. Gorillas and chimpanzees prefer to use their right hands, just like us. Giraffes usually extend their left leg in front of their right when they go down to drink, and deer herds tend to move counterclockwise. Such a “shift” makes sense when you consider that the nervous systems usually consist of the left and right hemispheres. Not only does each half of the brain control the opposite half of the body (the left hemisphere controls the right half, and the right half controls the left), but each of them dominates the performance of specific tasks.
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For example, in humans, visual processing of space occurs mainly in the right hemisphere, while for 95 percent of people, language processing is primarily the fruit of the work of the left. Curiously, among left-handers, this figure is approaching 70 percent. But back to the dolphins.
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According to the editorial board of Science Alert, scientists have managed to identify that striped dolphins (Stenella coeruleoalba), for example, check unfamiliar objects with their right eye. Dusky dolphins (Lagenorhynchus obscurus) keep prey in the field of view of the right eye during hunting. To find out how dolphins use their brains, the researchers recorded and analyzed the movements of 30 individuals living in the Bahamas.
