[eli5] Why can’t we control our body, other than using specific muscles?

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Why I(me, awareness) can’t send signals to my body to create or destroy an organ, but can use muscles? (Both are electric signals)

In: Biology

4 Answers

Anonymous 0 Comments

Is there an evolutionary advantage to an organism that can destroy it’s own organs at will?

We don’t evolve special powers just because “”it would be cool” (and uh, destroying parts of your vital organs is a very loose definition of cool). We do not even evolve abilities because we think it would be *useful*. We evolve characteristics by random change, and changes that are useful for survival lead to better survival of offspring, which leads to the trait passing on to more generations.

An animal that could think, “Hmm, today I will destroy my liver” is not an animal that is poised for success

There are animals that destroy parts of their bodies; tadpoles absorb their tails when they mature into frogs. Useful because they no longer need a tail. Lizards can intentionally cause their tail to fall off, useful this allows the lizard to escape a predator. Ants chew off their wings after mating because they no longer need to fly.

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