Iryna’s Reviews > Story Of The Human Body > Status Update

Though we are not so degenerate but that we might possibly live in a cave or a wigwam or wear skins today, it certainly is better to accept the advantages, though so dearly bought, which the invention and industry of mankind offer.

-HENRY DAVID THOREAU, Walden

Big brains may makes you smarter, but they cost a lot and cause many problems.
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Дуже класно, з математикою, показаний процесс розселення ранього людства, що по факту не є міграцією в класичному розумінні, а радше поступове розосередження територіями спричинене поступовим зростанням чисельності Людини Прямоходячої, та особливостей життя груп мисливців-збирачів.

Hunter-gatherers typically have babies every three years, nearly twice the rate of apes. Further, since human babies take so much longer to mature, hunter-gatherer mothers must nurse and care for young infants at the same time they continue to feed and care for older, still immature children who are not yet ready to forage on their own.

"Humans are comparatively poor athletes on land as well. The world's speediest humans can sprint about 23 miles (37 kilome-ters) per hour for less than half a minute. For most of us plodders, such speeds seem superhuman, but numerous mammals, including chimps and goats, easily run at twice that speed for many minutes without the help of coaches or years of intense training. I can't even outrun a squirrel"
Loooooool

The final and most important point about adaptation is really a crucial caveat: no organism is primarily adapted to be healthy, long-lived, happy, or to achieve many other goals for which people strive.
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