Unseasonably warm and cold days can prolong the active period of moths and butterflies by nearly a month. "The results are not at all what we expected."

Scientists have discovered where the first butterflies originated and which plants they relied on for food.

Botanical gardens and other urban green spaces can hold surprising diversity, according to a new study that shows they're key for butterflies.

The iconic monarch butterfly has been added to the Red List of endangered species, but hasn’t received protection in the US yet. That’s not necessarily a bad thing.

Plus, why you should always remove grass cuttings from your lawn.

Pollen brings seasonal misery to millions of Americans, but it serves a critical purpose: fertilizing many kinds of plants, including food crops.

A debilitating parasite is invading the guts of monarch butterflies, researchers say. "It's a signal that something is not right in the environment."

How did eyespots on butterfly wings evolve? By recruiting gene networks already at work in the body to build antennae, legs, and even wings, research finds.

Researchers used a nano-3D printing method to recreate the brilliant structural color of butterfly wings. It could pave the way for new screen technology.