Various scents used in training classes

August 9, 2012 | 9:02 p.m. CDT

Virginia Huxley puts some scented cotton swabs into a glass container. The swabs are used to train dogs to detect scents. These swabs, with birch, anise and clove scents will be used in K9 Nose Work classes.

RELATED STORIES: Columbia dogs sniff their way through competition