An annual count of monarch butterflies conducted by the United States and Mexico as the insects migrate back and forth over the border finds habitat for the insects isn't enough to sustain their ...

Late last year, the U.S. Fish and Wildlife Service announced rule changes that would impact habitats and listing or delisting ...

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 ...

WASHINGTON (AP) — The monarch butterfly fluttered a step closer to extinction Thursday, as scientists put the iconic orange-and-black insect on the endangered list because of its fast dwindling ...

Every fall, millions of monarch butterflies drift across Texas skies on their way from Canada to Mexico. It's one of the longest insect migrations on the planet, and for many monarchs, Texas is the ...

RADNOR LAKE STATE PARK, Tenn. (WTVF) — Peak migration season has arrived for monarch butterflies, and they're now passing through Tennessee on their journey south. But these iconic black and orange ...

SAN FRANCISCO (CN) — Two nonprofits sued the Trump administration Thursday to put pressure on officials regarding federal protections for monarch butterflies, a species that has seen rapid decline in ...

The monarch butterfly, perhaps the most recognizable butterfly in North America, is in trouble: since the mid-1990s, their population has declined 90 percent from its 20-year average, and their ...