Sea urchins were fairly common throughout the expedition, but this one was particularly interesting due to its barbed spines and brittle star associates.

Sea urchins were fairly common throughout the expedition, but this one was particularly interesting due to its barbed spines and brittle star associates. Image courtesy of NOAA Okeanos Explorer Program, Océano Profundo 2015: Exploring Puerto Rico’s Seamounts, Trenches, and Troughs.

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Related Links

Off the Cutting Room Floor

Océano Profundo 2015: Exploring Puerto Rico’s Seamounts, Trenches, and Troughs

NOAA Ship Okeanos Explorer