Why are monarch butterflies disappearing? You may know them for their amazing transcontinental migration, but over the past few decades, monarch butterflies have been part of a vanishing act that has scientists worried. Conservation biologists Ashley Fisher and Isis Howard show us what it takes to track monarch butterfly populations at one of their favorite overwintering spots. Join our host and museum curator Jessica Ware, Ph.D. for a close look at this iconic insect, its incredible lifecycle, and its multigenerational migration. Then, follow scientists who are working at a monarch butterfly roosting site in the western U.S. to figure out what’s behind the monarch butterfly population plunge. The series is produced for PBS by the American Museum of Natural History.
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