The eastern monarch has a 61% chance of going extinct in the next 60 years. For the western population, the figure is 99%.

With their vibrant orange-and-black wings and remarkable annual migration spanning thousands of miles, monarch butterflies are among the most recognizable insects. But perhaps their most astonishing ...

This surgery was a total metamorphosis! An injured monarch butterfly with a ripped-off wing is able to fly again thanks to a first-of-its kind transplant at a nature preserve on Long Island. The ...

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 ...