If you are interested in more background on biological brains, c.elegans is really just "the very first breakthrough" (in the phraseology of Max Bennett's A Brief History Of Intelligence -- a recent, worthwhile popular science book).
For a copy near you, https://search.worldcat.org/title/1077130914
1hr long lecture by Claire Evans https://www.youtube.com/watch?v=wLQKp8mHHJ0
If you are interested in more background on biological brains, c.elegans is really just "the very first breakthrough" (in the phraseology of Max Bennett's A Brief History Of Intelligence -- a recent, worthwhile popular science book).