Mollusks are a diverse group of invertebrate animals that include creatures such as snails, clams, octopuses, and squids. They are known for their soft bodies and typically have a hard external shell. Mollusks are found in marine, freshwater, and terrestrial environments, making them one of the most widespread groups of animals on the planet.
There are seven classes of mollusks, each with its own unique characteristics:
Mollusks play a crucial role in various ecosystems. They serve as food for other animals, help control algae levels, and some species are even used as indicators of environmental health. Additionally, mollusks provide valuable resources for humans, including food (e.g., clams, oysters), jewelry (e.g., pearls), and pharmaceutical compounds.