/r/askscience
When I move my head from side to side, but keep my eyes fixed on a certain point, does it use the same eye muscles, in the same way, as when I keep my head position fixed, but move my eyes from side to side?
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We know that adrenaline allows people to do tremendous physical feats, e.g. to bring a child to safety from underneath a car. When the adrenaline wears off, what's the physical recovery like after the feat? Does the adult tear muscles, dislocate bones and just not notice?
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Do we know whether the newest Covid mutations in the UK and South Africa are indeed the same virus (i.e. a traveller from either brought it to the other) or if we are dealing with two independently mutated stains that just happen to coincidentally manifest around the same time?
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What happens a chimpanzee baby is raised by bonobos? And vice versa? Will they adapt to their new societies? Can chimpanzees cross breed with bonobos?
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