Small institutions struggle to balance class size with financial feasibility, leading to canceled electives due to low enrollment. This study reports the preliminary data of a mixed-majors class intended to overcome the minimum enrollment hurdle. Animal Behavior was an upper-level course emphasizing engagement and shared learning. I examined graded assignments and student attitudes to determine if major or scientific background impacted student success. Participating students were evenly distributed across biology (n=9) and psychology (n=10) majors with similar median GPAs (3.8 vs 3.5, respectively). Major was the only predictor of final score (f(1) = 5.69, p = 0.04). While there was a significant difference in final scores between the majors (biology [x-bar]= 93.29 ± 1.61 vs psychology [x-bar] = 83.77 ± 2.88; t(18) = 2.80, p = 0.01), there was no difference in passing the class (final grade [greater than or equal to] 70%; ?[superscript 2] (1,19) = 0.95, p = 0.33). Most students tended to respond more favorably in the final survey than the midterm survey, but biology majors tended to have a greater change in scores than psychology majors. Overall, these data suggest that an upper-level science elective can be successful for mixed-major cohorts, but replication is necessary to draw robust conclusions.