This video illustrates Team Twilight Zone (TZ) member Beth  Hines SCUBA diving and observing different sponges at depth followed up with post dive lab work up.  Beth illustrates the steps required to do a histology1 prep, which is used to see what kind of sponge you are looking at! Video courtesy of of the Twilight Zone Expedition Team 2007, NOAA-OE.

1Histology is the study of tissue sectioned as a thin slice to study of the microscopic structures of animal and plant tissue.

Related Links

Cayman Islands Twilight Zone 2007

Cayman Islands Twilight Zone 2007: May 30 Log

NOAA Ocean Explorer Gallery