Monarch butterflies are a keystone species, meaning they play a massive role in their native ecosystems. Think you know ...

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 ...

If you are a UD faculty member interested in writing about your research for The Conversation, please email [email protected]. Monarch butterflies are among the most beloved insects in North America. They ...

The official state insect of Texas is in trouble. The monarch butterfly, long idolized for its epic migrations and delicate beauty, is facing another alarming chapter in its decline. Volunteers ...

Monarch butterfly populations have been in steady decline, and recently the International Union for the Conservation of Nature, IUCN, placed the monarch butterfly on its Red List of threatened ...

Monarch butterflies have declined 80 percent or more in recent decades Each year, eastern monarchs embark on a migration spanning thousands of miles and multiple generations to overwintering ...

Monarch butterflies (Danaus plexippus) appear to be declining not just in North America but also in Australiasia. Could this be a consequence of global change, including climate change ...

The monarch butterfly's ancestral home in North America is noted for an annual mass migration and spectacular overwintering of adults in fir forests in a few locations in Mexico, at densities of ...

Federal wildlife officials on Tuesday moved to add the monarch butterfly to its endangered species roster, citing decades of steep population decline of the striking black-and-orange insect.