Each year, millions of monarch butterflies travel thousands of miles across North America to escape the cold and find ...

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!

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 in the western U.S. have dropped to just 9,119 this year. In 2023, the count was 233,394, meaning a 96% decline.

Much of California’s Habitat for the migratory Monarch butterfly is gone. Wild fires have decimated groves of trees and plants where the Western Monarch winters. The typical flight plan of the Monarch ...

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 ...

There is an eastern and western population of monarch butterflies, and they follow different migration paths. Much of the eastern population spends the winter in Mexico then travels back north in ...

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 ...