As part of the Boulder Summer School 2011 lecture videos, Professor Daniel Goldman from Georgia Tech gives “Part 2” of his talk, “Swimming in Sand.” You can find the lecture notes on the BSS2011 website under the link of "Lecture Notes": http://boulder.research.yale.edu/Boulder-2011/index.html
Related Link: Study Reveals Sandfish Tucks Legs to Slither Like Snake Through Sand