That's how teeth are supposed to look, says Britain. Americans, take note.http://www.thedailymash.co.uk/news/health/thats-how-teeth-are-supposed-to-look-says-britain-2015052798615 …
I'm my period, ave life expectancy was 40 but if you made it to 40, you were pretty likely to go on to 70.
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I recall reading that early hominid life spans were 20 years, doubling about the agricultural revolution. Hmmm
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But was this because of their parts wearing out or something environmental?
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I know many evo biologists think women go thru menopause so long before before death coz evolution favours kids with grandmothers
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Which would suggest natural lifespan longer than 40.
End of conversation
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