Captive-raising monarchs in cages also puts the butterflies at risk. The OE parasite can reach very high levels in indoor ...

The monarch butterfly, long idolized for its epic migrations ... 8, are reporting disturbingly low numbers at California’s coastal overwintering sites, where the western population of monarchs ...

Monarch butterflies (Danaus plexippus) appear to be declining not just in North America but also in Australasia. Could this ...

The eastern population of monarch butterflies overwinters primarily in the oyamel fir forests of the Sierra Madre Mountains in central Mexico, which provide a microclimate essential for their survival ...

Monarch butterflies are among the most ... monarchs appear to be able to bounce back each year despite fewer numbers of overwintering butterflies. This would explain why observers still see ...

Monarch butterflies are in decline in New Zealand and Australia, and they need our help to track where they gather, said an ...

The 50-year-old discovery of how monarchs migrate has forever changed how science and culture view the colourful insects ...

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

The U.S. Fish and Wildlife Service is proposing federal protections for the monarch butterfly. Last month, the service ...

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 ...

Overwintering habitat provides an essential ... The proposal to list the monarch butterfly and designate critical habitat was published in the Federal Register on Thursday. Information about ...