One of the features we expect to explore during the 2023 Shakedown + EXPRESS West Coast Exploration are methane seeps. These seeps provide food from chemical energy and structure for deep-sea animals to live on, increasing the biodiversity at such sites. This image shows a mass of snails (gastropods called Neptunea) and their egg masses (the yellow towers) using clumps of tubeworms as a place to anchor at a seep site within Olympic Coast National Marine Sanctuary, off the Oregon coast.