According to the latest research on fossils found in the Jordan desert, meat eating could have played an essential role in the development of the human brain.
250,000 years ago, the human species was beginning to dominate Earth. With opposable thumbs and ever larger brains, we were becoming the dominant species.
Humankind was starting to craft and use tools. The study was published in the Journal of Archeological Science. It found that human beings had opposable thumbs and a brain before even being fully human.
Hominins in the Azraq Oasis, which is now an arid region in Northeast Jordan, used to butcher and cook animals some 250,000 ago, that’s 50,000 years before the first modern humans appeared in Africa.
At that time, the Azraq Oasis was much greener, just as what is now Africa was much greener at that time, too. Findings also suggest the fact that climate change drove people out of Africa and the Middle East into colder regions.
Once, parts of what is today Africa and the Middle East had much milder climates, with fresh water and springs pouring out everywhere.
Scientists found up to 10,000 different tool artifacts in the Azraq region, made of river stones, flint, and other local materials.
44 well-preserved artifacts were selected and tested with antiserum, to look for animal proteins. They found animal proteins in the microscopic cracks on the blades.
These indicated that early humans fed on rhinoceros, horse, duck, camel and wild cattle. These early humans all came from the once green region.
With the advent of hunting, the human species began sprouting into development. Once humans started to cook meat, they could feed their growing brains better quality food, which encouraged further growth. The brain is the most calorie consuming organ of the human body.
Along with the brain evolving, and the food becoming easier to chew, humans started to have less muscular jaws and changes in the neck and cranium to support a larger brain.
With better tools, better food, and bigger brains, humans started to be smarter and took the faith of the planet into their own hands.
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