Invertebrates of Redwood National and State Parks
The 5 invertebrates you can find at Redwood National and State Parks, like the Banana slug — sizes, diets, and whether you should worry.
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Invertebrate Banana slug
Ariolimax columbianus
A long yellow slug, sometimes as big as a real banana, that glides across the damp floor of the redwood forest and cleans up what falls there.
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Invertebrate California mussel
Mytilus californianus
The big blue-black mussel that packs Pacific rocks by the thousands, anchored by threads so strong they inspired medical glue.
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Invertebrate Giant green anemone
Anthopleura xanthogrammica
A bright green tide-pool anemone that farms algae inside its own body for the color and eats crabs whole with a ring of stinging tentacles.
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Invertebrate Ochre sea star
Pisaster ochraceus
The purple or orange five-armed star of Pacific tide pools whose appetite for mussels decides what everything else on the rock gets to be.
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Invertebrate Western tiger swallowtail
Papilio rutulus
The big yellow-and-black butterfly of western streamsides whose caterpillar wears fake snake eyes and flips out a stinky orange horn when scared.