MEXICO CITY (AP) — The number of monarch butterflies wintering in the mountains west of Mexico City rebounded this year, ...

Pesticides, habitat loss, and climate change are the most oft-cited factors. With numbers so low, other factors — predators, disease, and extreme weather events, for example — loom larger. This ...

The number of monarch butterflies wintering in the mountains west of Mexico City rebounded this year, doubling the area they covered in 2024 despite the stresses of climate change and habitat loss ...

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MEXICO CITY – The number of monarch butterflies wintering in the ... covered in 2024 despite the stresses of climate change and habitat loss, experts said Thursday. The annual butterfly count ...

In a world where environmental challenges often feel overwhelming, one determined 8-year-old is proving that age is no ...

(AP Video by Armando Solís and Martin Silva Rey). 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 ...

A decrease in milkweed means a decrease in monarch habitat, which means a decrease in monarchs. For many backyard gardeners, helping these beautiful butterflies starts with one word: milkweed.