Scientists at Harvard have come to the conclusion that humans began to evolve when they began to cook meat. This would have been due to the increased energy that comes from eating cooked meat and vegetables.
HEATING food advanced human evolution because cooked meat and vegetables provide the body with more energy than raw food, US scientists said today.
Researchers from Harvard University came to the conclusion after studying the diets of two groups of mice, one fed on raw meat and vegetables and the other on cooked.
They found that regardless of whether the rodents were fed meat or vegetables, the cooked variety delivered greater amounts of energy, leading to bigger, stronger mice.
Early humans suddenly evolved to have bigger brains and stronger bodies around two million years ago, and the researchers suggested that this change occurred because it was in this period that they learned how to control fire and started to cook.
In November the world population reached 7 billion people. This number has raised concerns over whether or not the world can sustain feeding such a large population.
The world’s population recently crossed the 7 billion people threshold. We have entered a new era of endless possibilities with our growing interconnectedness and exponentially fast growth of innovative technology.
But 7 billion people raises a lot of fear and concern about whether the world is capable of sustaining such a large number of people. Is there enough food for all 7 billion of us?
Last week the world’s population was less than 7 billion and 925 million people did not have enough food to eat, according to the World Food Program. Of those 925 million people, 98 percent lived in developing countries.
The numbers look bleak – but it is not because we are incapable of feeding everyone. We are.
According to the U.N. Food and Agriculture Organization, the world produces enough food to provide every… continue reading