Just saw that they have 32 brains and curious why something so small needs so many brains.
In: 43
Leeches are build up of modular and fairly similar segments (with the segments near each end being more specialized).
If they have 32 brains or not depends on how you look at it. Another way of looking at it is that have 1 brain-structure with 32 segments spread out along the nervecord (which fulfills the same role as the nerves in our spine, they just don’t have any bones around it). Also the segments near the head and near the tail have fused into slightly bigger bundles of braincells.
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