Invertebrates of North Cascades National Park
The 2 invertebrates you can find at North Cascades National Park, 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 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.