The 12th annual Walk to Defeat ALS event at the Pittsburgh Zoo and PPG Aquarium will be held Saturday. The walk is less than a mile through the zoo to help raise money for research into the cause and cure of amyotrophic lateral sclerosis, a devastating and fatal neuromuscular disease.

Open to the public, registration starts at 7 a.m. and the walk at 9 a.m. For more information, call 1-800-967-9296 or visit www.cure4als.org.

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