/u/Vesurel's posts in /r/askscience

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[Biology] Which taxonomic classifications can and can't be evolved out of? (And does that mean all vertebrates are still fish)

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Is the rate people have their first period constant throughout the year or does it vary?

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If some women have a fourth type of cone in their eyes, 4, and some are missing one of the RGB cones are there some women with RG4 R4B or 4GB?

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How viable would menstrual blood be for an emergency transfusion?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
[Biology] Which taxonomic classifications can and can't be evolved out of? (And does that mean all vertebrates are still fish)	1
Is the rate people have their first period constant throughout the year or does it vary?	1
If some women have a fourth type of cone in their eyes, 4, and some are missing one of the RGB cones are there some women with RG4 R4B or 4GB?	1
How viable would menstrual blood be for an emergency transfusion?	1