300px-Diatoms_through_the_microscope

Assorted diatoms as seen through a microscope. These specimens were living between crystals of annual sea ice in McMurdo Sound, Antarctica. Image digitized from original 35mm Ektachrome slide. These tiny phytoplankton are encased within a silicate cell wall. (Photo: Prof. Gordon T. Taylor, Stony Brook University - corp2365, NOAA Corps Collection)

Assorted diatoms as seen through a microscope. These specimens were living between crystals of annual sea ice in McMurdo Sound, Antarctica. Image digitized from original 35mm Ektachrome slide. These tiny phytoplankton are encased within a silicate cell wall. (Photo: Prof. Gordon T. Taylor, Stony Brook University – corp2365, NOAA Corps Collection)