Photo by Bruce Gourley
A closeup view of a cynaobacteria mat in Yellowstone National Park’s Upper Geyser Basin, home of famous Old Faithful Geyser. The temperature of the water is around 150 degrees Fahrenheit. Heat-living organisms, called thermophiles, exist in Yellowstone’s hot springs and pools. Twenty years ago scientists discovered that an enzyme in a certain thermophile could be used to make DNA copying much more faster and efficient, a finding that led to DNA sequencing. DNA fingerprinting, in short, came out of Yellowstone. And the dramatic growth of biochemisty and genetics we also owe to Yellowstone.
See more of Bruce’s photography on Fine Art America.