RENEE MONTAGNE, HOST:
Those royally beautiful creatures, monarch butterflies, are declining in numbers, partly because a certain weed is disappearing, especially across the American Midwest. The monarch butterfly caterpillar depends on milkweed to survive. And that's something you can help with by planting milkweed, which is really a pretty flower in your garden. I know. I have lots of milkweed in mine and lots of monarchs. From member station KBIA, Sara Shahriari has more.