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

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Homo Erectus lived about 2 million years - way longer than modern humans. Why didn't they develop at least some form of society and technology that is comparable with today?

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What causes the bitter taste in our mouth when we are about to throw up even though nothing left our stomach yet?

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Is it theoretically possible for a species to evolve into a completely different type of life (i.e. a plant into an animal or vice versa)? If so, did that ever happen on Earth?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Homo Erectus lived about 2 million years - way longer than modern humans. Why didn't they develop at least some form of society and technology that is comparable with today?	1
What causes the bitter taste in our mouth when we are about to throw up even though nothing left our stomach yet?	0
Is it theoretically possible for a species to evolve into a completely different type of life (i.e. a plant into an animal or vice versa)? If so, did that ever happen on Earth?	0