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, which ...

**Species Overview**: The garden snail (_Cornu aspersum_) is the most popular species for pet snails in the U.S., with a lifespan of 2 to 3 years and a shell size up to 1.625 inches. **Basic Care**: ...

Sea butterflies flit through the ocean on gossamer wings, each species with a style of its own. These tiny marine snails, or thecosomes, migrate up to surface waters at night to feed and sink to ...

Commonly found in backyard gardens throughout the world, snails live a very interesting life. But how long do snails live, and what is the average life cycle like for a snail? These creatures are ...

Hermit crabs are more than happy to let snails build them a perfect home. Hermit crabs are obsessed with snail shells. These crafty little crabs, found in California's rocky intertidal zone, are more ...