Pesticides found in monarchs' milkweed near farm fields

Conservation organizations across the United States plant milkweed to combat the loss of monarch butterflies, whose populations have declined around 90 percent in the last two decades. Where they plant may be important, according ...

Caterpillar 'road rage' could affect migration

Monarch butterfly caterpillars living next to roads may be stressed by the sound of passing cars and trucks, according to a new study from the University of Georgia.

Gardeners can help protect butterfly populations

Bees aren't the only pollinators suffering from a massive North American die-off. Butterflies and moths, those flying flowers of the insect world, are disappearing too.

Global warming may reroute evolution

(PhysOrg.com) -- Rising carbon dioxide levels associated with global warming may affect interactions between plants and the insects that eat them, altering the course of plant evolution, research at the University of Michigan ...