The widespread use of pesticides, such as Roundup, has killed off milkweed plants, a crucial food source for monarchs.

"The iconic monarch butterfly is cherished across North America, captivating children and adults throughout its fascinating life cycle," U.S. Fish and Wildlife Service Director Martha Williams ...

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

Beauty on the Wing: Life Story of the Monarch Butterfly is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV ...

PERRYSBURG, Ohio — Learning in the field was definitely the goal for two northwest Ohio science teachers who went on a field ...

one trend is clear — the Western Monarch butterfly population has declined by more than 95% since the 1980s, Howard said. With such a drastic population loss, the remaining butterflies are ...

For the past three years, more than 200,000 western monarch butterflies spent their ... since the count first began in 1997. While the butterfly’s population has been declining for years ...

Every November, around the Day of the Dead, millions of monarch butterflies descend on a forest of oyamel firs in the mountains of central Mexico. The butterflies have never seen the forest before ...

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in California this winter, a foreboding sign for the future of the beloved ...

In December, the U.S. Fish and Wildlife Service proposed to list the monarch butterfly as a threatened species under the U.S. Endangered Species Act. The public can comment on the listing until ...