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 ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Jacky Parker Photography / Getty Images The plight of monarch butterflies is well known.

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

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 ...

Elizabeth Blackstone of West End Nursery, left, chats with customer Ann Brenner of Ross while Brenner selects a pair of native milkweed plants at West End Nursery in San Rafael on Tuesday, Aug. 30, ...

She gave us a small takeout bowl containing our three cats and a couple of swamp milkweed leaves. The cats were a centimeter long, at most, but even at that size, the characteristic yellow, black, and ...

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. Oliver Hernandez’s ...

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 ...

Monarch butterflies, with their striking orange and black wings, are some of the most recognizable butterflies in North America. But they're in trouble. Monarch caterpillars can only eat the leaves of ...

This behavior by the fluttering insects was so unusual that scientists had to invent a new word to describe it. By Annie Roth Butterflies seem gentle as they flutter from plant to plant. But some may ...