November 6 - 12 Discover Nature this week and the value of a rodent. Though some folks scream and climb the highest point possible when they see a rodent, there isn't a reason to avoid native rodent species according to the Missouri Department of Conservation. The term "rodent" may raise images of disease-infested vermin living in garbage-strewn alleys. Actually, most of the negative images arise from two unwelcome imports -- the house mouse and the Norway rat. These old-world immigrants are not