Sea shells india

Seashells have fascinated beach-goers, scientists, and collectors for centuries. Their unique appearance and intricate designs often reveal a wealth of secrets about the world below the waves. In this guide, we’ll explore the world of seashells, diving into their origins, the creatures that call them home, and the intriguing facts that make them so wonderful.

What are seashells?

Seashells, simply put, are the outer protective coverings of marine creatures, primarily molluscs. These creatures craft their shells using calcium carbonate extracted from their surroundings, resulting in a diverse array of shapes, sizes, and colours. Found strewn across beaches worldwide, seashells are not only beautiful to look at but also serve as tangible objects that show the ocean’s vast biodiversity.

What are molluscs?

Molluscs are a diverse group of invertebrates (Mollusca) including creatures like snails, clams, and octopuses. Molluscs will craft just one shell through their lifetime, utilising proteins and calcium carbonate to fashion their protective exoskeleton.

Types of seashells

Seashells come in a great variety, each with its unique characteristics and origins. Among the most common types are flat shells and cone-shaped shells. Flat shells are often found in sandy coastal regions, while cone shells inhabit tropical reefs and sandy bottoms. These variations in habitat contribute to the diversity of seashell types found across different beaches worldwide.

Fun facts about seashells
1. Seashells were used in countries such as China and India as currency. This started thousands of years ago, where cowry shells or copies of the shells were used. Cowries were used in India as currency up until around the 1830s. In Papua New Guinea, you can still use cowry shells as money!

2. Most seashells open to the right, which means they are dextral, and only some are left-handed, which means they are sinistral.

3. Putting a seashell to your ear might sound like you can hear the ocean, but it’s actually just the ambient noise around you turned up a notch. It’s amplified by the shell!

4. Argonauts are the only known octopus that have a shell, and it’s only the females that create their shell. They use their arms to build and repair the shell, instead of secreting the chemicals like other molluscs.

5. Shells have often been used in the production of toothpaste because of the calcium carbonate in them! In the 19th century, seashells would be dissolved in vinegar and used in powders used to treat things like heartburn too.