House of Glass
Video courtesy of NOAA Ocean Exploration, Voyage to the Ridge 2022.
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We saw this beautiful glass sponge during the fifth dive of the second Voyage to the Ridge 2022 expedition. These sponges are known to house two small shrimp – a male and a female. The shrimp enter the sponge as a pair when they are small, but eventually grow too large to escape and thus live the rest of their lives within the protective walls of the sponge. While we were imaging this sponge at 1,058 meters (3,471 feet) depth, one of the shrimp crawled up to investigate the lights of the remotely operated vehicle.