Animals That Have Shells
29 Aug, 2024
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Most of the seashells we know are part of a classification of animals collectively called “mollusks.”
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Mollusks
A sea urchin's shell is also known as a "test." The male shells have an attractive symmetrical design that serves as a tool for attracting females.
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Sea urchin
he chambered nautilus is a cephalopod that uses its shell to protect itself from predators and even to move through the water column.
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Nautilidae
Crustaceans such as crab, lobster, crayfish, and shrimp have shells that consist mostly of chitin, a long-chain polysaccharide
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Crustacean shells
Tortoise shell is a material made from the shells of large turtles and tortoises, particularly the hawksbill sea turtle.
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