Solitary hydroids are fairly common observations during NOAA Ship Okeanos Explorer dives, but there was much discussion amongst our science team as to why these three individuals appear to share a base.
Solitary Hydroid
Image courtesy of the NOAA Office of Ocean Exploration and Research, Mountains in the Deep: Exploring the Central Pacific Basin. Download larger version (jpg, 953 KB).

Solitary hydroids are fairly common observations during NOAA Ship Okeanos Explorer dives, but there was much discussion amongst our science team as to why these three individuals appear to share a base.

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