North America is home to many iconic living species: bald eagles, grizzly bears, bison and monarch butterflies. But monarch butterflies in the U.S. might not be around much longer. The migratory ...

According to a study from UC Riverside and UC Berkeley researchers, some predators of monarch butterflies have evolved through genetic mutations that allow them, too, to eat poisonous milkweed, making ...

The iconic monarch butterfly is declining across North America. You can help make a difference by providing the species with its food plant: milkweed. A monarch butterfly gliding over a field on ...

The flitting fiery orange and black wings of the monarch butterfly, which once signaled the coming of spring, have become an increasingly rare sight. The majestic insect's populations on the East ...

PETOSKEY, MI – Lauri Juday carries around little packets of common milkweed seeds and gives them to anyone who promises to plant them. That’s because monarch butterflies need native milkweed plants to ...

When oleander aphids infested tropical milkweed, monarch butterflies laid fewer eggs on the plant, and the caterpillars developing on those plants were slower to mature. Many gardeners will tell you ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. In recent years, the monarch butterfly population has decreased by ...

Oliver Hernandez poses with a common milkweed plant in his front yard in 2020. A tiny, young monarch caterpillar and even tinier monarch eggs are visible on the underside of a leaf. Across the Midwest ...