This is kind of crazy ... the funniest part comes around 2:30 ... the little red and white crab actually plucks off his own arm and gives it to the shrimp. It actually grabs it arm with it's opposite arm, takes it off, and feeds the shrimp to escape.


The snapping sound you hear is the mantis' pincher, which shoots out at a hyper fast speed, creating a snap and supposedly boiling some of the water around the pincher.