This underwater photograph, taken in the waste-water drain at the Wairākei geothermal power station, shows thick growths of fibrous silica in the 60°C water. The shape of these growths is due to long filamentous bacteria.
Te whakamahi i tēnei tūemi
GNS Science, Extremophile photo collection
Photograph by Duncan Graham
Permission of GNS Science must be obtained before any use of this image.