SEVERAL INTERESTING FACTS FROM THIS RESEARCH….IT HAS LONG BEEN ESTABLISHED THAT THE LONG-CHAIN FATTY ACIDS ARE GOOD FOR YOUNG CHILDREN WHEN THEY ARE GROWING AND BRAIN SIZE INCREASES…THIS NOW CONFIRMS THAT IT WAS CRITICAL FOR BRAINSIZE GROWTH IN EARLIER HUMANS…NATURAL WHOLE FOODS SUCH AS FISH ARE IMPORTANT FOR OVERALL DIET TOO…
The work is based on bones and artifacts from a prehistoric “kitchen” that make up the earliest evidence that humans ate aquatic animals.
Stone tools and the butchered bones of turtles, crocodiles, and fish were found at the 1.95-million-year-old site in northern Kenya. No human bones were found, but the combination of remains suggests early humans used the site specifically to prepare meals.
That’s because reptiles and fish are particularly rich in long-chain polyunsaturated fatty acids. Some experts think this so-called good fat was “part of the package” of human brain evolution, said study leader David Braun, an archaeologist at the University of Cape Town in South Africa.
Discovering evidence for “brain food” in the late Pliocene (about 3 to 1.8 million years ago) may explain how bigger brains—for instance in our likely direct ancestor Homo erectus—arose in humans and their relatives about 1.8 million years ago, Braun said.