Travelers on Highway 18 in northwest Iowa were treated to a unique sight last week.

Perched atop his mule with a donkey as his wingman, Mike Siddall plodded his way across the plains. His main objective wasn't a destination, but rather to spread awareness about an issue most folks don't think about.

Siddall's wife, Anita, started the nonprofit organization Toothbrushers and Balaam's Donkey in 2018. The group provides oral cleanings and screenings to people with self-care deficits, like residents in nursing home facilities or individuals with special needs. The Siddalls are hoping Mike's unprec...