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| arthritis, meal, bobby plump , selenium, cholesterol, sugar, unsaturation, essential fatty acids in human, acetic acid, food allergies, saturated and unsaturated fatty acids , | The placenta is a powerhouse of nutrients and energy and 70% of the calories are devoted to brain growth. No wonder they grew bigger brains. calories. topics The Big Change in Human Brains Human beings are thought to have lived on earth for millions of years, however the big brain change happened only in the last 200,000 calories. years or so. calories. What could have caused the change in human brains? And why did some human brains change and others stay the same? Could it have been what they ate? topics Find Out How Scientists Unraveled the Mystery The puzzle of the big brain change involved scientists putting together pieces that at first look had no relation. The first piece of the puzzle involved discovering early human populations that demonstrated greater intelligence. |
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| Knight © Rhoda Steel Kalt Early Man painting by Charles R. Knight © Rhoda Steel Kalt topics The First Brains Animal life first originated in the sea, where there was an abundance of omega-3 fatty acids – the same fatty acids that now form the essential components food allergies of our eyes' photo receptors and our brain's cell membranes. As time went on, flowering seed plants appeared and with them a brand new fatty acid family was introduced. The seed oils of these plants contained food allergies what we call omega-6 fatty acids. For the food allergies first time, the omega-3 and omega-6 fatty acid families existed on earth together and apparently this opened the door for an entire new set of species to arrive that would develop bigger brains. How did the new species develop bigger brains? topics How Species Developed Bigger Brains Unlike the fish, amphibians and reptiles of the time, the new species, called mammals did not lay eggs. Mammals, kept their offspring inside of their bodies, surrounded by a sac called a placenta. |
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