Definition
A seashell is the hard, protective outer layer created by a marine animal, typically a mollusk. It provides shelter and support for the soft-bodied animal inside. Seashells come in a variety of shapes, sizes, and colors, reflecting the diversity of marine life. They are often found washed up on beaches, collected as souvenirs. Seashells are primarily made of calcium carbonate. They are beautiful reminders of the ocean's wonders. Each shell is unique.