The Endangered Species Act is no help yet.

Adult monarch butterflies are large with bright orange wings, white spots and black veins and boarder. The U.S. Fish and Wildlife Service is recommending federal protections for the species as factors ...

SALT LAKE CITY — The iconic monarch butterfly, sporting its splashy orange and black wings, has been in serious decline for decades. Now, the U.S. Fish and Wildlife Service is asking for the public to ...

California's wildlife conservation societies are urging people to come forward to help save these iconic pollinator species.

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 ...

Monarch butterflies are among the most beloved insects in North America. They are brightly colored and unique, both as caterpillars and later as mature insects. Monarchs are found in every U.S. state ...

MADISON, Wis. — U.S. wildlife officials announced a decision Tuesday to extend federal protections to monarch butterflies after years of warnings from environmentalists that populations are shrinking ...

The hotter conditions produced more potent toxins in the milkweed. But the researchers said that surprisingly, the parasitic ...

Before National Geographic published its famous August 1976 cover story detailing the search for the monarch butterfly’s wintering grounds, nobody knew where these strikingly beautiful creatures ...

The Trump administration said Tuesday that it is reconsidering adding protections to the monarch butterfly as a threatened species under the Endangered Species Act. The U.S. Fish and Wildlife Service ...