Monarch butterflies only flap their wings around 5 to 12 times per second — much more slowly than the average butterfly, who flaps about 20 times a second. In the right conditions, a migrating monarch ...

This year’s count of 4.42 acres of occupied forest habitat is nearly twice as large as last year's, but eastern monarch ...

The population wintering in central Mexico's forests occupied 4.42 acres, up from 2.22 acres during the previous winter.

A Pennsylvania butterfly farmer says listing the monarch as a threatened species could do more harm than good.

A monarch butterfly gliding over a field on outstretched ... female landing and reaching her abdomen down to deposit a single golden, cone-shaped egg on the underside of a leaf.

The survey began in 1997 Monarch butterflies, known for their distinctive orange-and-black wings, are found across North America. Monarchs in the eastern United States spend their winters in ...

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 ...

In 2020, the monarch butterfly population dropped to an alarming low, with fewer than 2,000 butterflies counted across California. However, the following year, their numbers rebounded to over ...