Ancestors 'slept less' than we do Post a Comment A study of modern hunter gatherer societies suggests our ancestors may have only slept 6.5 hours a night. Baca JugaIn pictures: Solar eclipse as seen from the UK'Miraculous' mosquito hack cuts dengue by 77%Backlash against 'frightening' tests on whales Read More Share : Post a Comment for "Ancestors 'slept less' than we do"
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