Hermit crabs are crabs that live inside of a shell. They use the shell for protection and as a portable home, kind of live an RV. They scour the beach looking for food acting like a beach cleaning system. They tend to eat just about anything that they can, and becasue of their appetites they clean up all of the leftover organic material that may end up on a beach i.e., coconuts, dead fish etc.
We have noticed that some of these creatures are much faster than others, so for fun we like to have what we call Hermit crab races. What we do is all pick out a crab, put them into the middle of a circle and let the races begin. The first crab to make out of the circle wins.