Invertebrates - Animals Without Backbones

The Hidden World of Invertebrates in Redwood National and State Parks

Invertebrates make up the largest and most diverse group of animals anywhere in the world, and Redwood National and State Parks are no exception. With the wide variety of habitats found here, it’s no surprise that the diversity of invertebrates is remarkably high.

Wherever you go in the parks, examples of this incredible diversity are all around you. From banana slugs and millipedes in the redwood forest to freshwater mussels in park creeks, and the astonishing variety of tidepool invertebrates along the coast, these "spineless" creatures thrive in every corner of the landscape—whether at your feet or fluttering just beyond reach.

Insects: The Most Abundant Invertebrates

Insects are among the most diverse and commonly encountered invertebrates in the park. Learn about the butterflies of Bald and Little Bald Hills, the industrious carpenter ants, or the fascinating world of ladybugs.