The image shows a mud mound with a central vent that shows up as sort of a bluish tint, and it is surrounded by large bivalves (clams). The central vent has a series of mud flow channels that spill away from the vent center. These were the locations and paths for mud flows that resulted when the mud volcano was more actively venting. The large clams number around 40 or so individuals and their association with the vent indicate a feeding or foraging strategy tied to what ever is coming out of the vent. The scale is shown for this image by the laser points which are 20 cm apart. Credit: Eos/American Geophysical Union.