Monarch Butterflies

The Highway 13 Butterfly Trail will pass through 12 western Missouri counties and feature gardens, art installations, and research facilities. Though targeting all Missouri pollinators, there will be a special focus on monarch butterflies, who are particularly threatened.

Monarchs are migrating through the St. Louis region now, but residents are seeing fewer of them than ever before.

The number of monarchs migrating through St. Louis seems low this year, which has entomologists worrying about the population.

Scientists say roosting monarchs took up 2.2 acres of Mexican fir forests this winter. That's the second smallest overwintering population on the books.

Monarch butterflies travel hundreds and even thousands of miles in their migration to Mexico. Volunteer efforts to tag the butterflies have helped scientists learn more about their journey.

Scientists who study pollinating bees and butterflies report that state laws across the U.S. aren’t doing enough to protect the very animals that help…

Missouri conservationists will hold a festival Saturday at the U.S. Department of Energy’s Weldon Spring Site in St. Charles to ask gardeners to help…

Scientists are concerned that monarch butterflies could be facing a new threat: pesticides that contain dicamba. A report released last week from the…

The next two weeks will offer Missourians peak opportunities to see monarch butterflies as they make their way through the state on their annual…

Mayor Francis Slay’s initiative to plant Monarch butterfly gardens throughout the city has a new addition in south St. Louis funded by a company that…