I can guarantee that I will hear Rudolph the Red-Nosed Reindeer sung at least once this month. Which is fine. I like reindeer. And caribou, which is what these undomesticated, elk-like animals are sometimes called in North America. It’s likely that caribou and reindeer belong to the same species (Rangifer tarandus). They live in large herds in tundra and taiga areas of the far north, and migrate, often a thousand miles or more each year. In the winter in particular, huge caribou survive by eating lichen, that tiny, unique bit of life which will be the last guest star of 2011. Do you have any suggestions for Tuesday, December 13 and Tuesday, December 20? Let me know through the contact page on this site.