Cyanobacterial Filament moves by Algae, at 1000x

Sample from a Heron’s Head Park salt marsh pond OS1 shows a Cyanobacterial Filament moving slowly past a strand of Algae. Magnification is 1000x Hoffman Modulation Contrast optics photographed with a Nikon Coolpix 885 at 3x zoom. Cyanobacteria are ancient photosynthetic prokaryote bacteria thought to have created our oxygen atmosphere over the last 3-billion years. The algae is a eukaryote multicellular primitive plant that probably arrived on the scene between 1-billion and 700-million years ago. Both