The sea pen is a remarkable marine organism that looks like a feather pen.
It is a colonial animal, which means it is made up of numerous individual polyps that operate together as one.
It eats small plankton and other organic particles that they filter from the sea.
They feed other animals like fish, crabs, and snails. Also can grow to be over 6 feet tall.
They also help to filter the water, making it cleaner for other species to live in.
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