Many infected monarch caterpillars don't make it to adulthood. Those that do can't fly well and don't live long, possibly ...

Monarch butterflies are important culturally and ecologically across North America. Generations have watched in wonder as yellow-and-black striped caterpillars fold into green-and-gold chrysalises and ...

Monarch butterflies are important culturally and ecologically across North America. Generations have watched in wonder as yellow-and-black striped caterpillars fold into green-and-gold chrysalises and ...

The monarch butterfly life cycle begins with a whirl of wings in the heat of the summer sun. As a female monarch sips nectar ...

About a week ago, several monarch caterpillars were busily munching on the native narrowleaf milkweed I’d planted in my backyard in the San Francisco Bay Area to provide habitat for the imperiled ...

Juday hand raises multiple generations of monarch caterpillars each summer until they metamorphosize. She even tags some in time for their autumn journey to Mexico. Milkweed plays a critical role ...

The glyphosate killed the milkweed plants, which monarch caterpillars depend upon as their exclusive food source, between crop rows and at field edges. “We see the steepest time of the decline ...

Share articleTropical Milkweed is a popular ornamental plant featuring bright orange and yellow flowers. It is often planted ...