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Why are dolphins so smart

05.09.2010

Dolphins are smart because they eat fish, says Michael Crawford of the Institute of Brain Chemistry and Nutrition in London.

Fish oil contains a lot of so-called omega-3 polyunsaturated fatty acids. These acids are required by brain cells, especially at the points of contact (synapses) with other nerve cells.

It has been shown that in children who received food with a low content of such acids, the IQ is reduced. In countries where a lot of fish is eaten, there are fewer murders and suicides than in others, fewer cases of depression, schizophrenia and other mental disorders.

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