In October 2020, Ocean Exploration Trust’s E/V Nautilus crew discovered something extraordinary—vast clusters of glass spongesGlass sponges in general are a rare sight, but what made this discovery even more surprising is where they were found.Beginning just 25 miles off the coast of California, The Channel Islands National Marine Sanctuary is a 1,470 square mile refuge for wildlife as well as a human heritage site. Regions where the ocean floor can be found just 1,000 feet or so below, like Footprint Ridge and the Piggy Bank, have been pretty thoroughly explored.But between those two sites lies a valley, plunging another thousand feet below. This time, in late 2020, the scientific team famous for their live-streaming of footage captured by ROV’s, decided to give that valley a closer look.That’s when the NOAA experts, on Nautilus Live, stumbled upon a vast underwater field of glass.Finds like these are becoming increasingly important as potential habitats for diverse life and as indicators of ocean health in a changing world.But, aside from the obviously fascinating fact that these creatures have skeletons made of glass, what exactly are these so-called glass sponges?That’s what this episode of Class is all about, the art of glass.Support the Show and this Series at www.patreon.com/thewildlife

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