Shallower living moray eels like this one seen at a depth of 279 meters on Dive 6 at Supply Reef on June 23, 2016, are nocturnal and/or live in holes and crevices to avoid predators.

Shallower living moray eels like this one seen at a depth of 279 meters on Dive 6 at Supply Reef on June 23, 2016, are nocturnal and/or live in holes and crevices to avoid predators. Image courtesy of NOAA Office of Ocean Exploration and Research, 2016 Deepwater Exploration of the Marianas.

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Related Links

Mission Log: July 6: Eels and Eely Fishes: Why Are The Fish So Long Down Here?

2016 Deepwater Exploration of the Marianas

NOAA Ship Okeanos Explorer