What type of birth do molluscs give?

Molluscs exhibit diverse reproductive strategies, with many species laying eggs, while others may give live birth. Most marine molluscs, like snails and clams, typically reproduce by external fertilization, releasing eggs and sperm into the water. In contrast, some species, such as certain types of octopuses and sea slugs, can give birth to live young through internal fertilization. The reproductive method can vary significantly among the different classes of molluscs.