The mollusk family is one of the largest groupings in its scientific classification. There are over eighty-five thousand different species of mollusk. Mollusks reproduce by laying eggs, and having them fertilized. Some mollusks are able to do this themselves, these kind are considered to be both male and female.
Molluscs form one of the largest groups in the animal kingdom, with more than 100,000 known species! They include all the shelled creatures of the seashore, with the exception of the barnacles. Chitons, clams, mussels, snails, nudibranchs...
There are several species of marine mollusks, and they reproduce in different ways. Some are live bearers, while others lay eggs. Although many are hermaphrodites, they still need a mate in order to reproduce.