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You take a population of fish and put them in a new environment (another planet even). Will they evolve? Yes they would evolve as long as they don't get extinct. It sounds very likely that they would very quickly get extinct though. Note, however that they were already constantly evolving while being on earth whether or not their environment was stable or ...


It is a widely known spinal reflex arc which causes decapitated animals (even soldier without head) to move over some period of time after decapitation. One of the arc representations: see also The life after decapitation additional video

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