Microbial communities
near natural oil seeps
Santa Paula Creek, California
Carbonate terraces
at Mammoth hot springs
Yellowstone National Park, Wyoming
Methane bubbles frozen in ice
Rocky Mountain National Park, Colorado
Alkaline Mono Lake
Eastern Sierra Nevada, California
Precambrian Chevron
Stromatolites
West Texas
Phototrophs growing
in glacial melt
Laugavegur, Iceland
Microbial structures at
Octopus Spring
Yellowstone National Park, Wyoming