Source: SCIENCE.IN.GR
In contrast to humans, chimpanzee's brain did not have to invent the pot (Photo: Associated Press)
Washington: New research data seem to confirm the relatively new theory that man was the smartest animal in cooking sake: if one were to limit itself in raw, unprocessed food, you will have to chew endlessly for nine hours a day to feed the intensive, smart brain.
Previous studies have already shown that the sliced and cooked food allows the human digestive system to pump more energy. This is also expected, as cooking cleaves food ingredients and reduces the energy expenditure of digestion.
The energy benefits of cooking are also so large that have led some anthropologists to conclude that our ancestors became larger brains when they discovered the uses of fire.
Indeed, The earliest evidence for the use of fire, which date to around one million years, almost coincide with the appearance of a large brain in our ancestor Homo erectus, until about a half million years.
Another study suggests that the theory of cooking is now published in the American journal PNAS. Researchers at the Federal University of Rio de Janeiro calculate that diet raises untouchable limit the amount of energy that can be hired on a daily basis a mammal.
In the first phase, the researchers measured the neurons and energy consumption in the brains of 13 species of primates and even 30 mammals. They then calculated how many hours a day should munch each animal in order to meet the needs of their brain.
Estimates indicate that the average gorilla have 8.8 hours a day, one orangutan 7.8 hours, 7.3 hours a chimpanzee and a man 9.3 hours.
"If one consumes only raw food, the hours of the day are not enough to hire enough calories and develop such a large brain," says Susana Ierkoulano-Chaouzel, a member of the research team.
"The cooking allowed us to bypass the limitation of how much food you can consume in one day," he concludes.
In contrast to humans, chimpanzee's brain did not have to invent the pot (Photo: Associated Press)
Washington: New research data seem to confirm the relatively new theory that man was the smartest animal in cooking sake: if one were to limit itself in raw, unprocessed food, you will have to chew endlessly for nine hours a day to feed the intensive, smart brain.
Previous studies have already shown that the sliced and cooked food allows the human digestive system to pump more energy. This is also expected, as cooking cleaves food ingredients and reduces the energy expenditure of digestion.
The energy benefits of cooking are also so large that have led some anthropologists to conclude that our ancestors became larger brains when they discovered the uses of fire.
Indeed, The earliest evidence for the use of fire, which date to around one million years, almost coincide with the appearance of a large brain in our ancestor Homo erectus, until about a half million years.
Another study suggests that the theory of cooking is now published in the American journal PNAS. Researchers at the Federal University of Rio de Janeiro calculate that diet raises untouchable limit the amount of energy that can be hired on a daily basis a mammal.
In the first phase, the researchers measured the neurons and energy consumption in the brains of 13 species of primates and even 30 mammals. They then calculated how many hours a day should munch each animal in order to meet the needs of their brain.
Estimates indicate that the average gorilla have 8.8 hours a day, one orangutan 7.8 hours, 7.3 hours a chimpanzee and a man 9.3 hours.
"If one consumes only raw food, the hours of the day are not enough to hire enough calories and develop such a large brain," says Susana Ierkoulano-Chaouzel, a member of the research team.
"The cooking allowed us to bypass the limitation of how much food you can consume in one day," he concludes.
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