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Sea Pen — printable fact sheet
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Animal Fact Sheet
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Sea Pen
Pennatula phosphorea
The sea pen is a colonial marine invertebrate belonging to the order Pennatulacea, resembling a quill pen anchored in soft sea bottoms. Composed of hundreds to thousands of polyps, sea pens display a central stalk with feathery branches, each housing feeding or reproductive poly…
Did you know?
- Sea pens can retract their entire bodies into the sediment if they sense danger, effectively hiding from predators.
- Sea pens are named for their resemblance to old-fashioned quill pens. They are colonial animals, meaning each 'individual' is actually a colony of specialized polyps. Some species of sea pens are capable of glowing in the dark due to bioluminescence.
What I learned
Draw the sea pen
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