Renowned photography competition selects winning photos with a concerning cause for butterflies and climate change.

The monarch butterfly, long idolized for its epic migrations and delicate beauty, is facing another alarming chapter in its decline. Volunteers with the Xerces Society's midseason monarch count, ...

Thogmartin and other researchers have evaluated more than 200 scenarios for restoring greater than 1.3 billion stems of ...

The U.S. Fish and Wildlife Service proposes listing Monarch butterflies as threatened, seeking public input until March 2025.

The proposal to list the monarch as a threatened species is not a done deal. The FWS invites comments from the general public ...

EPA must better assess the dangers of pesticides, especially in monarch breeding habitats in state’s Central Valley.

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 ...

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 ...