Each year, monarch butterflies migrate between Canada and Mexico, a generational flight with deep environmental resonance.

Every year, millions of Methuselah or super generation monarchs overwinter in the oyamel fir forests of Central Mexico after a 3,000-mile journey from Canada. Then in spring, they start the whole ...

Learn facts about the monarch butterfly, including how how to tell male and female monarchs apart and if monarchs are ...

New research shows climate change may push monarch butterflies farther south and make their long migration harder in the ...

To some people, seeing a monarch butterfly has meaning. These orange and black fliers can be a symbol of strength, change and ...

Suitable habitat for migrating monarch butterflies will shift southwards because of climate change, according to a study ...

One of the most recognizable and widely dispersed insects in North America may soon be headed for protections under the Endangered Species Act. In early December, federal wildlife officials will ...

PACIFIC GROVE — Monarch butterfly numbers are down this year entering prime counting season, but experts aren’t panicking yet. “Butterfly populations are bouncy,” said Isis Howard, an endangered ...

MADISON, Wis. — President Donald Trump’s administration has delayed a decision on whether to extend federal protections to monarch butterflies indefinitely despite years of warnings from ...