London, United Kingdom
Photograph - Photograph
Fire coral (Millepora tenella) with the white, feathery tentacles of its polyps visible. This coral, in fact a colonial hydrozoan, is built by tiny hydrozoan polyps for their protection. The polyps' tentacles are covered in nematocysts (stinging cells), which cause a painful sting. It is this sting that gives this coral its name. Fire coral is important in coral reef building because its branched colonies form fairly large structures on which other coral can be laid down.
May 6th, 2013
Viewed 6 Times - Last Visitor from San Francisco, CA on 10/12/2013 at 4:46 PM