A lichen is a colony of algae or cyanobacteria living interactively with fungus and bacteria in a mutual or symbiotic relationship, but for Steve Leavitt, a lichen is a  hotspot of diversity and  an indicator of ecological health. Steve is in charge of one of the largest lichen collections in North America at BYU where he teaches and directs the Life Science Museum. But most of all, Steve loves his research and being outside. We talk with Steve about how the unique factors on the Colorado Plateau contribute to diverse lichen communities, how lichens can be used as indicators of air quality, and the impacts of climate change on their distribution. Steve explains how advancements in genetics have led to a step-change in the study of lichens and the broader implications of studying lichens for understanding life on Earth.

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