I had to dress a snapping turtle once at this event.
http://wildfoodadventures.com/workshop/north-carolina-wild-food-weekend/
It was bizarre how long the legs continued to gyrate after the head, heart, lungs, and other organs were removed. Almost 45 minutes! Spontaneous activity in the spinal cord CPGs, I guess.
https://en.wikipedia.org/wiki/Central_pattern_generator