Week Five: Bonus Question

This week saw some rodents of Charla's Size (ROCS) being used to sniff out landmines (or, in this case, clues).

What type of rodent is used to perform these landmine duties? (20 points)
What is one drawback to using rodents for this work? (10 points)
What movie from the 1980s had some rodents that were actually Charla's size? (10 points)