We don’t often see millipedes because of their preference for secluded, moist sites where they feed on decaying vegetation and other organic matter. They are also more active at night, when the humidity is high. At this time of year, however, your chances of seeing a millipede are increased due to the fact that these invertebrates are migrating in search of overwintering sites. Adults overwinter in nooks and crannies that provide them with some protection. Many, like the one pictured, end up under loose bark.
Millipedes are harmless, so if you see one that accidentally found its way into your home, you can safely return it to the outdoors.
Naturally Curious is supported by donations. If you choose to contribute, you may go to http://www.naturallycuriouswithmaryholland.wordpress.com and click on the yellow “donate” button.