Monarch butterflies are making their flight north after wintering in Mexico. Here's what to know about the fascinating, ...

The U.S. Fish and Wildlife Service has announced the reopening of the public comment period for a proposed rule to list the ...

The Trump administration is reopening public comment on a proposed rule that would list the monarch butterfly as threatened ...

Just a few years ago, the eastern monarch was considered endangered by the International Union for Conservation of Nature ...

The splashy monarch butterfly only lives about five weeks, but its entire survival is in question due to threats posed by ...

"This is bad news," Emma Pelton, an endangered species biologist, told the AP. "But we have seen incredible recovery. This ...

The number of monarch butterflies that spent the winter in Mexico doubled this year, giving hope for a species that has faced ...

The U.S. Fish and Wildlife Service is opening a second comment period as they work to list the monarch butterfly on the ...

If you noticed a lack of orange and black wings fluttering through your backyard this summer, it's not just you. The distinctive and much-loved monarch butterfly has had a noticeable drop in its ...

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