Fishy but Not fishy:
A fascinating take on modeling fish-like locomotion using the kinds of physics you expect to see in theoretical physics.
Oh wait… this *is* theoretical physics…
“A hierarchy of models for the control of fish-like locomotion” Juan B. Melli, 2008, Dissertation
I don’t ‘read’ these per se but I look at the pictures and some of the descriptions that I understand. Speedily.
http://cwrowley.princeton.edu/theses/melli.pdf
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