Add Yahoo as a preferred source to see more of our stories on Google. Extreme heat, one of many symptoms of climate change, is making monarch butterflies vulnerable to parasites, according to a ...

The population of the iconic species is shrinking in the long term, but continued conservation efforts can help save it.

The monarch butterflies are making a comeback. For decades, the monarch butterfly population has been declining. Their winter habitat during migration has also been declining due to deforestation. A ...

A new report from WWF‑Mexico shows that the endangered migratory eastern monarch butterfly is showing promising signs of recovery.

Diagram depicting the overlap of climatic suitability, biological suitability and environmental suitability for defining areas of low, medium and Highest suitability for eggs and larvae of monarch ...

Monarch butterflies are important culturally and ecologically across North America. Generations have watched in wonder as yellow-and-black striped caterpillars fold into green-and-gold chrysalises and ...

In this week's Science for All newsletter, Divya Gandhi explains how milkweed is a toxic treat for monarch butterflies ...

Monarch butterfly numbers are flying higher, but they still have many miles to go. According to a pair of 2025-2026 reports from the World Wildlife Fund and partners, the population of eastern monarch ...

Scientists and volunteers explain where to go, when to visit, and how to support this beautiful species. Monarch butterflies migrate to California each fall to escape cold weather and cluster in ...