Sure, you know your species, but how about the other two thousand or so rodents? Which of the following are genuine members of the order rodentia? Record whether each is a rodent (yes/no) by commenting on this entry (or just using a scrap of paper). The next entry in my journal will be the answers.
1. Flying Squirrel
5. Nutria / Coypu
17. Pine Marten
A score of 10 or more qualifies you as a knowledable honorary rodent. The top score at the panel, IIRC, was 16/18. Good luck!