All mollusks build their own shells, whether they live in water or on land. Creatures like snails, clams, oysters and mussels use an organ called a mantle to secrete layers of calcium carbonate ...

Since female apple snails can lay clusters of 500 to 700 eggs every 5 to 14 days, it's important to destroy those eggs when you see them to hinder their reproduction and reduce their impact on the ...