Riannon worked extra hard last week to pull together a poster on the research she has been doing in the lab. She presented the poster in the 2018 Earth & Atmospheric Sciences Graduate Student Symposium. Last semester she digitized photographs of over 350 Microtus upper jaws. This semester she has been learning geomorph in R and analyzing the data that she collected last semester. Her analysis is demonstrating that in addition to just the lower first molars of Microtus californicus (the California vole), the entire upper toothrow exhibits consistent shape differences that correlate with differences in precipitation. Riannon was one of the few juniors to have a project far enough along to present in such a setting, which included both graduate students and undergraduates. She did a fantastic job! Kudos to Riannon!