Research
as part of studies in CPPM practice / research on site / corner
& evolution / multiplication / branching /repetition /
reverse / sapiens / fat corner
& evolution / multiplication / branching /repetition /
reverse / sapiens / fat corner
"DESPITE THEIR MANY DIFFERENCES, ALL HUMAN SPECIES SHARE SEVERAL DEFINING CHARACTERISTICS. MOST NOTABLY, HUMANS HAVE EXTRAORDINARILY LARGE BRAINS COMPARED TO OTHER ANIMALS. MAMMALS WEIGHTING SIXTY KILOGRAMS HAVE AN AVERAGE BRAIN SIZE OF 2OO CUBIC CENTIMETRES. THE EARLIEST MEN AND WOMEN, 2,5 MILLION YEARS AGO, HAD BRAINS OF ABOUT 600 CUBIC CENTIMETRES. NEANDERTHAL BRAINS WERE EVEN BIGGER.
IN HOMO SAPIENS, THE BRAIN ACCOUNTS FOR ABOUT 2-3 PER CENT OF TOTAL BODY WEIGHT, BUT IT CONSUMES 25 PER CENT OF THE BODY'S ENERGY WHEN THE BODY IS AT REST. BY COMPARISON , THE BRAINS OF OTHER APES REQUIRE ONLY 8 PER CENT OF REST- TIME ENERGY.
WE ASSUME THAT A LARGE BRAIN, THE USE OF TOOLS, SUPERIOR LEARNING ABILITIES AND COMPLEX SOCIAL STRUCTURES ARE HUGE ADVANTAGES. IT SEEMS SELF-EVIDENT THAT THESE HAVE MADE HUMANKIND THE MOST POWERFUL ANIMAL ON EARTH".
YUVAL NOAH HARARI
