They close up in their very hard shells and spring into a small hole or area where their predator can't reach them.
I am trying to find out what scallops are and where they come from
Well, they aren't predators, but Giant Clams have been known to snap squid or crabs into their mouths for a quick, bellied snack
Clams are predated mostly by sea stars and some molluscs.
octopus can change colors
Octopuses and squids can also move by using a form of jet propulsion. Water is drawn into the mantle cavity and then forced out through a tube, propelling the cephalopods backwards from danger. In...