Feeding barnacles and some vent shrimp seen at Kawio Barat. The tentacles, or
cirri, of the barnacles, extend like blooming flowers, then fold back into the
shell. The white fluff on the cirri are filaments of bacteria that grow in the
passing vent water. The barnacles hold them out to promote growth, and then,
apparently, retract the cirri to "lick their fingers."
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