Hi, I am Dr. Pacifica Sommers, a microbial ecologist at the University of Colorado Boulder. This photo is of me in Antarctica, where I set up cage matches for bacteria to fight each other in mud puddles on the glaciers to study processes of ecological organization, including biological invasions, at the microscopic level - in the bacteria's natural environment! Even though I love hiking around in Antarctica for my job, that's actually only a small part of what I do. I signed up for Science-A-Thon to showcase the rest of my awesome job, including data analysis (making discoveries!) and teaching.