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

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From an evolutionary standpoint, how on earth could nature create a Sloth? Like... everything needs to be competitive in its environment, and I just can't see how they're competitive.

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Hypothetically, is it possible that there is an unknown planet that orbits our sun at the same rate as Earth, but is directly opposite earth (always behind the sun from our POV)?

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Why does scratching an itch feel sooooo gooood?

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If we find an exoplanet with liquid water, what are the odds that it has life?

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Through all of Human evolution, why didn't we evolve to have smaller babies, with less risk during childbirth?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
From an evolutionary standpoint, how on earth could nature create a Sloth? Like... everything needs to be competitive in its environment, and I just can't see how they're competitive.	4424
Hypothetically, is it possible that there is an unknown planet that orbits our sun at the same rate as Earth, but is directly opposite earth (always behind the sun from our POV)?	1
Why does scratching an itch feel sooooo gooood?	1
If we find an exoplanet with liquid water, what are the odds that it has life?	1
Through all of Human evolution, why didn't we evolve to have smaller babies, with less risk during childbirth?	1