OregonHiker's photos with the keyword: invertebrate

Octopus at the Oregon Coast Aquarium in Newport, Oregon. With your eyes you could barely see the octopus in a small dark cave. This was shot using only the light that was naturally present at ISO-800, f/2.8, and 1/15th of a second, and further brightened in photo editor to make the octopus more visible.

Nudibranch and Hermit Crab in tidepool at Cape Arago on the southern Oregon coast.