Monarch butterflies have an innate ability to navigate long distances ... Their internal clock also helps them adjust their ...

This video depicts a tethered monarch butterfly in the flight simulator ... it quickly corrects its bearing to continue on a migratory flight path. Disclaimer: AAAS and EurekAlert!

The iconic monarch butterfly is declining across North America. You can help make a difference by providing the species with ...

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 number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing habitat and climate ...