The number of monarch butterflies wintering in the mountains west of Mexico City, rebounded this year, doubling the area they ...

A study, published Thursday in the journal Science, found that 22% of butterflies in the United States disappeared between ...

The population wintering in central Mexico's forests occupied 4.42 acres, up from 2.22 acres during the previous winter.

Butterfly populations have dropped by 22% in the United States, according to a new study published Thursday in the journal Science.

A study, published Thursday in the journal Science, found that 22% of butterflies in the United States disappeared between ...

Butterflies are vanishing nationwide due to habitat loss, climate change and use of insecticides, according to a new study, ...

PISMO BEACH, Calif. (CN) — In a small tree grove at the south end of Pismo Beach on California's Central Coast, one visitor ...

A sweeping new study reveals that butterfly populations across the continental United States have plummeted by 22% over the ...

The first countrywide systematic analysis of butterfly abundance found that the number of butterflies in the Lower 48 states ...

Kidspace Museum announces the joyful return of its annual Butterfly Season, beginning March 13. This vibrant celebration ...

A Pennsylvania butterfly farmer says listing the monarch as a threatened species could do more harm than good.