Nudibranch is a mollusk family that doesn t have a shell. Ninety-nine percent of all snail species have shell whorls that coil in a clockwise direction. Scallops have dozens of eyes. Carrier shells attach other shells or stones to their own shell for protection and camouflage. We hear the sound of the seashore inside large shells because the shell echoes surrounding sounds, jumbling and amplifying them.
Many land snails can lift ten times their own weight up a vertical surface.
Mr. Thomas Green of La Plata, Maryland, consumed 350 edible snails in eight and a half minutes. Mike Racz in Invercargill, New Zealand, opened 100 oysters in 2 minutes and 20 seconds. One of them, the misnamed Teredo Shipworm , earned its name by ruining wooden boats. Many species of snails and clams breathe through a snorkel, or siphon, when they bury themselves in the mud or sand. They coat the foreign substance with shelly material.