Seashells tend to appear quietly. After the tide pulls back, they are just there, mixed into the sand, sometimes whole, ...

Most marine animals form their shells from calcium carbonate, which is a tough mineral also found in limestone. Some sponges and microorganisms use another compound silica. There is also a group of ...

Land snail extinctions are accelerating across islands, exposing a devastating collapse of some of the world’s most fragile ...

A comprehensive new review paper reveals the staggering loss of biodiversity among island land snails globally. Lead author ...

In hydrothermal vent fields, a small snail evolved an iron-reinforced shell. Here’s how it challenges assumptions about ...

A snorkeler in Australia found a shell tagged with a strangely specific number, kickstarting an online mystery about its ...

Cartoons often suggest turtles wear shells like removable armor. Those stories show turtles stepping out, swapping shells, or ...