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 ...

However, she cannot tell, based on the picture, if it is an empty shell or one with a live snail inside. "Cone snails are very venomous and dangerous to humans," she said. "They should be left ...

By looking inside through a break that had occurred when the shell rolled out of the net onto the deck of the ship, scientists were able to identify it as a member of a family of marine snails ...

In brief: they've grown thicker shells. The paper documents two sets of field experiments, conducted 20 years apart, measuring the thickness and plasticity in samples of tidal snails. The first ...

The picture shared online doesn’t make clear whether the shell had a live snail inside, or if it was simply an empty shell. Either way, experts were all in agreement that picking up any objects ...