Evolution is racist

Humans grew bigger brains as the climate they lived in got cooler,
according to researchers at the University at Albany, New York.

The researchers concluded that humans got brainier because they had to
adapt to a more challenging environment. They base this assertion on a
plot of cranial capacity of 109 fossilised human skulls against the
corresponding paleontological record of two million years of changing
climate.

Researchers link human skull size and climate | The Register

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