The monarch was placed on a waitlist until last December, when the agency formally proposed the butterfly's Endangered ...

As monarch butterfly populations tragically plummet, Mesa is one of the latest cities to join in on national efforts to save ...

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

Monarch butterflies now confront the Trump administration with its first big Endangered Species Act test, as a lively public comment period is set to end and the serious decisionmaking will begin.

There's nothing quite like seeing a monarch butterfly spread its wings and glide through the air. It can certainly provide a sense of calm to life's everyday stressors. But the monarchs' numbers ...

And March 12 is National Plant a Flower Day, the perfect day to bask in the sunlight and plant flowers that will help pollinators like the endangered eastern monarch butterfly. The sun is out ...

The World Wildlife Fund's latest count of migratory monarch butterflies offers some encouraging news for the eastern population while the western population may be struggling to survive.