6 Incredible Barnacle Facts!

Tooltip Scribbled Underline

It is one of the world's oldest species of living things.

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Because many species have a hard shell, it was once thought to be linked to snails, which are mollusks.

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While suspended feeding, it uses small "cirri" legs or feet to eat.

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A parasite, the rhizocephalan barnacle.

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It is hermaphroditic.

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Acorn barnacles are the most prevalent of the more than 14,000 species of barnacles.

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