/u/blackdragon437's posts in /r/askscience
Do we have any proof of evolution in humans in the last 2000-3000 years? No matter how insignificant it may be..
798 upvotes
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What's the longest you can hold out cryo-freezing a human embryo before it can't be unfrozen and implanted again?
11 upvotes
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1 upvotes
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