More than 3,400 Oklahomans suffer from the debilitating nerve disease known as multiple sclerosis. Help find a cure by stepping out at Saturday’s annual Walk MS at Oklahoma City Zoo, 2101 N.E. 50th. Registration begins 7 a.m. for the 8:30 walk. Participants can enjoy the zoo for free afterward! Call 800-344-4867 or visit walkmsok.org.