Why do leeches need 32 brains?

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Just saw that they have 32 brains and curious why something so small needs so many brains.

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Anonymous 0 Comments

They don’t really have 32 brains, just each segment of their body is locally controlled, enabling fast response times to a stimulus. Like in humans the distance between the knee and the brain is considerable and a response might take a second to a stimulus so we short circuit some reactions with a reflex reaction.

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