Thanks to tiny new trackers and Bluetooth, scientists—and you—can now follow the epic journeys of individual butterflies.

Monarch butterflies (Danaus plexippus) have long been known for their impressive migration abilities, with North American species traveling around 3,000 miles from the United States and Canada into ...

Climate change, urban development and pesticides have caused the monarch butterfly population to drop over 90% in recent ...

From 2003 to 2019, amateur butterfly enthusiast Harlan Radcliff spent his lunch breaks observing butterflies on the grounds of the Camp Dodge military installation in central Iowa. Diane Debinski, ...

Every fall, an incredible migration occurs through the state of Indiana, where millions of tiny monarch butterflies fly on their way to overwintering grounds in Mexico, only to return in the spring to ...

U.S. officials moved Tuesday to protect the monarch, an iconic orange-and-black butterfly famous for its marathon migration across North America, under the Endangered Species Act. The U.S. Fish and ...

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

Monarch butterflies return to California for the winter in November in Santa Cruz, California. The U.S. Fish and Wildlife Service is taking steps to list monarch butterflies as a threatened species ...

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 ...