Thermophiles: Life in Yellowstone's Geothermal Features (Part 1)

The Greater Yellowstone Ecosystem is known for a lot of big things. Charismatic megafauna like bears and bison, expansive forests as far as the eye can see, and mountain ranges that seem to touch the sky are all found in this unique region. However, did you know that the Greater Yellowstone Ecosystem is also home to some of the most fascinating microbes found on the planet?

Enter thermophiles: microscopic creatures found in Yellowstone’s geothermal regions that thrive in scalding hot temperatures. The name thermophile comes from the Greek word thermē meaning heat and the Greek word philos meaning love or an affinity for something. They’re not often the stars of the show when it comes to visiting the park, but these thermophiles are at the center of some of the most interesting stories and scientific discoveries in a national park. After listening to this conversation, we hope that even the greatest Yellowstone experts can head into the park armed with a new subject to explore.  

Joining us on the podcast is Dr. Eric Boyd, a professor of environmental microbiology at Montana State University. For the past 20 years, Dr. Boyd has studied the microbiology and geochemistry of the thermal features in Yellowstone National Park to better understand the processes that support diverse microbial ecosystems in high temperature environments. He’s also authored over 190 scientific articles on extremophilic microorganisms, which live in environments with conditions approaching or stretching the limits of what known life can adapt to such as temperature, pressure, salinity, and pH level. If you want to learn about the incredible thermophiles found in Yellowstone, Dr. Boyd is your guy.

We chatted for quite a while so we’ve split this episode into two parts. In this episode, part 1, we’ll take a deep dive into what exactly a thermophile is, how thermophiles are able to thrive in these crazy hot conditions, how Dr. Boyd collects thermophiles in the park—including some interesting methods for Old Faithful—and much more.

I can’t wait for you to learn more about this “hot” topic!

The Greater Yellowstone Ecosystem is the land of 49+ Indigenous Tribes who maintain current and ancestral connections to the lands, waters, wildlife, plants, and more.

Voices of Greater Yellowstone was created by the Greater Yellowstone Coalition, a conservation nonprofit dedicated to working with people to protect the lands, waters, and wildlife of the Greater Yellowstone Ecosystem, now and for future generations.

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Podcast Artwork > Rachel Dunlap Art

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