By A Mystery Man Writer
The Four Biggest Hazards Facing Monarch Butterflies, and How You Can Help - Cool Green Science
More monarch butterflies migrating back to Pennsylvania this spring, but population remains threatened
Monarch butterfly migration study reveals alarming population decline
Monarch butterfly numbers plummet despite recovery last winter, but 1 year never tells the whole story
How the Monarch Butterfly Population is Measured - The National Wildlife Federation Blog
Monarch butterfly numbers dip to second lowest level in Mexico wintering grounds, Butterflies
Good News for Eastern Monarch Butterfly Population - The National Wildlife Federation Blog
05/17/2023 Monarch Migration Carries On
Eastern monarch butterfly population plunges below extinction threshold
Monarch butterflies return to California after all-time low