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

Millions of black and orange wings will flutter across the U.S. this spring, as the monarch butterflies make their annual ...

Mexican officials and environmental groups say better weather conditions on the butterflies’ migration route caused the ...

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

The monarch butterfly population has rebounded from a near record low number in 2024, according to the latest annual survey ...

The film explores the life cycle of the Monarch butterfly, detailing its remarkable migration journey of up to 6,000 kilometers from Canada to Mexico. It explains the butterfly's anatomy, including ...

The number of monarch ... Mexico City rebounded this year, doubling the area they covered in 2024 despite the stresses of climate change and habitat loss, experts said Thursday. The annual ...

The annual butterfly count doesn ... western overwinter populations of monarch butterflies — a separate population from those that winter in central Mexico — along the California coast ...

FILE - A Monarch butterfly rests near a stream at Piedra Herrada sanctuary in the mountains near Valle de Bravo, Mexico, Jan. 4, 2023. (AP Photo/Marco Ugarte, File) MEXICO CITY (AP) — The number of ...