Photo and caption by Jessica Henderson-McBean
In the bacterial mats that surround many of the famous pools and geysers of Yellowstone National Park, anything that falls into the water becomes a part of the delicate system. Many of the trees that have been exposed to the sulfur have been petrified by the minerals. This small leaf had fallen into the water and has had bacterial structures grow around it. Exemplifying the delicate nature of Yellowstone's geothermal pools, even a small leaf can alter the growth of these bacterial structures.
Location: Yellowstone National Park, Wyoming, USA