Sunset seen from the back deck of the Okeanos Explorer as the ship heads back to Apia, Samoa.
Crabs Holding Claws
Image courtesy of the NOAA Office of Ocean Exploration and Research, Discovering the Deep: Exploring Remote Pacific MPAs. Download larger version (jpg, 2.1 MB).

Two homolid crabs were observed holding claws at around 757 meters depth. It was unclear whether this was potentially aggressive or pre-mating behavior.

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