Seashells are the abandoned exoskeletons of mollusks, like snails and clams. Numerous seashell varieties, including ark shells, scallops and conchs, can be found on Corpus Christi beaches, ...

Every time you pick up a seashell at one of Corpus Christi's beaches, do you realize you're holding a mollusk's abandoned exoskeleton? A seashell is a hard, protective outer layer created by an animal ...