/u/fali12's posts
How does photon-photon interaction not misconstrue the paths of other photon-photon interactions throughout space?
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For underwater mammals that need to rise to the water's surface to breathe, how did they evolve? Did they first leave the water, and then come back in?
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Why don't we see large predatory birds with teeth? Do they exist? Have they ever existed? Or has it always been just sharp beaks?
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What are the chances that the very same molecule of water has become a part of my physiology more than once?
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