Sand Dollar
ExploreWonders
Sand Dollar
A sand dollar is a flat, round shell that lives in the sand on the ocean floor. They are very special and look like a coin!
Appearance
The Sand Dollar is a flattened, disk-shaped sea urchin with a rigid, circular or oval shell called a test. Its surface often appears white or pale gray when found on beaches, but living ones are typically covered in tiny, velvety spines ranging from greenish to purplish-brown.
KingdomAnimalia
Category
WondersRarity
Rare
Danger
1/5 · Very low
Snaps
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Interesting facts
Living sand dollars are covered in tiny, moving spines, making them feel like velvet!
Sand dollars can stand on edge in the sand to catch tiny food bits!
The five "petal" pattern on their top is actually part of their unique breathing system!
Tiny baby sand dollars swallow sand to weigh themselves down and not float away!
Traits
Spotted
Marked with spots or patches of a different color.
Camouflaged
Camouflaged describes organisms that possess coloring or patterns that allow them to blend into their environment.
Fossil
A fossil is the preserved remains or traces of an ancient organism embedded in rock or other geological deposits.
Natural
Natural refers to organisms, materials, or phenomena existing or produced by nature, not artificially created.
Also known as
DollaSand Dollar Sea UrchinSea Biscuit
Collections
Safety
Danger
1/5 · Very low
Explore with care and ask an adult if you’re unsure what to do.
Snap Map
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Recent Snaps
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