This aggregation of sea urchins, with at least 35 individuals, was a rarely observed phenomenon seen during Dive 08 of the third Voyage to the Ridge 2022 expedition.
Aggregation of Sea Urchins
Image courtesy of NOAA Ocean Exploration, Voyage to the Ridge 2022. Download larger version (jpg, 1.1 MB).

This aggregation of sea urchins, with at least 35 individuals, was a rarely observed phenomenon seen during Dive 08 of the third Voyage to the Ridge 2022 expedition.

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