Say the word “butterfly” to any younger Generation Xer, millennial, or older Zoomer, and any number of songs may immediately ...

TUCSON, Ariz. — A federal judge gave the U.S. Fish and Wildlife Service three years to assess the effects of five pesticides ...

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

One butterfly comes so far, and then it will stop to reproduce, and then the offspring from that monarch will emerge from the ...

A sweeping new study reveals that butterfly populations across the continental United States have plummeted by 22% over the ...

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 number of monarch butterflies wintering in the mountains west of Mexico City, rebounded this year, doubling the area they ...

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

Unless something changes, and changes soon, the monarch butterfly faces extinction. But there is something you can do to help ...