The gastropod shell is part of the body of many gastropods, including snails, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and …

The typical snail has a calcareous shell coiled in a spiral pattern around a central axis called the columella. Generally, the coils, or whorls, added later in life are larger than those added when …

It's during the gestation period that a snail's shell begins to form. The mantle is a crucial organ possessed by mollusks such as snails. Its function? Making and developing shells. Calcium …

Aug 19, 2025 · Understand the biological and chemical processes behind snail shell formation. Explore what they’re made of and how they grow.

Jan 5, 2023 · Gastropods have coiled shells. The shell is wrapped around a central axis, termed the columella, forming whorls. Each whorl is a complete revolution of the shell around the …

A seashell (or sea shell), also known simply as a shell, is a hard, protective outer layer usually created by an animal or organism that lives in the sea. Most seashells are made by mollusks, …

Dec 21, 2024 · Snail shells are primarily composed of calcium carbonate, which is secreted by the snail’s body and slowly built up over time. This process is made possible by the snail’s unique …

Aug 23, 2025 · Uncover the fascinating biological mechanisms by which snails construct their intricate and vital protective shells.

Mar 5, 2025 · Snails possess shells to protect themselves from predators and harsh weather conditions. The shell also serves as a means of regulating water and calcium levels in the …

Nov 15, 2023 · Snails and other molluscs create shells through a process called biomineralization. Through a shell gland, they secrete an organic matrix of proteins, carbohydrates and lipids that …