Many of us encourage milkweed to grow in our yards because it’s a host plant for monarch butterflies. When caterpillars eat milkweed, its toxins shield them against predators. But in humans and pets, ...

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 ...

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 ...

LOS ANGELES - March 21 is National Flower Day, and to celebrate, folks can plant some milkweed and start a pollinator garden to help the dwindling numbers of monarch butterflies. According to an ...

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 ...

In high enough concentrations, milkweed can kill a horse, or a human. To be able to eat this plant, monarchs evolved a set of unusual cellular mutations. New research shows the animals that prey on ...

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 ...

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 ...

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 ...

While exploring a patch of Milkweed, Evie came across a cluster of fuzzy, eye-catching caterpillars—Milkweed Tussock Moth caterpillars. Learn more about these lesser-known residents of Milkweed plants ...