RENEE MONTAGNE, HOST:
Good morning. I'm Renee Montagne. Minnesota's Mall of America is home to some 500 stores, a theme park and now some 72,000 ladybugs. Third graders released them inside the shopping center this week. Ladybugs protect the mall's 30,000 plants by eating aphids. Some mall-goers worried the bugs might descend on the food court, but a spokesman says the mall has released the ladybugs for years, and there's been no ladybug takeover yet. It's MORNING EDITION. Transcript provided by NPR, Copyright NPR.