An array of bait. Top row: variations on the stereotype (cheese). Middle row: high brow. Bottom row: nutty to sweet. At right: low brow.
Bait Key
The traps are set with mouse-sized hallways between them, so as not to prejudice the field. Now to wait.
Hypothesis: honey.
Conclusion: peanut butter.
Only a single mouse was harmed in the making of this science.