It was a finding that even surprised the researchers.
The expedition was conducted by the conservation group Oceana.
Their seven-day mission wrapped up last week. The group's goal was to document previously unexplored seafloor areas to find out once and for all if there is living habitat down there.
Scientists used a remote-operated vehicle to capture the images.
Those images included barrel sponges with rock fish living and hiding inside them as well as giant glass sponges that can be up to 200 years old.
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