Oysters have a central nervous system, with three ganglia: http://www.manandmoll... | Hacker News

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		gus_massa on Jan 18, 2021 \| parent \| context \| favorite \| on: Three reasons fungi are not plants Oysters have a central nervous system, with three ganglia: http://www.manandmollusc.net/advanced_introduction/bivalve_n... If you look carefully, it is very similar to the neural system in any bilateral https://www.britannica.com/science/nervous-system/Diffuse-ne... . It is twisted following the deformation of the body inside the shell. Compare it with https://entomology.unl.edu/charts/nervous.shtml In our central nervous system one of the ganglia grow tooooooo much. Moreover, the olfactory part of it grow tooooooooooooooooooooooooo much.

Florin_Andrei on Jan 18, 2021 | [–]

Freshwater hydra are probably closer to a topology that was never truly centralized.

https://en.wikipedia.org/wiki/Hydra_(genus)#Nervous_system

ahartmetz on Jan 18, 2021 | [–]

Now we know(?) why smells are so directly wired to emotions

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