In encouraging news, the eastern monarch butterfly population nearly doubled in 2025, according to a new report announced in Mexico. The population wintering in central Mexico's forests occupied 4.42 ...

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U.S. Fish and Wildlife Service via Flickr under CC BY 2.0 Butterfly populations in the United States have dropped by almost a quarter in the last two decades, according to a new analysis published ...

There is an old dilemma for the reader – or teacher – of Joyce’s Ulysses: whether or not to embark on a reading without introductory guidance. Joyce himself recognised the problem by giving ‘schemas’, ...

Two-thirds of studied species declined by more than 10%, the study said. Butterfly populations have dropped by 22% across 554 recorded species in the United States, according to a new study in the ...

The findings revealed that 33% of butterfly species have experienced significant population declines over the past two decades, with 107 out of the 342 species examined losing more than half of ...

US butterfly populations have declined by 22% since 2000, with 114 species showing significant drops. A study published in Science found insecticides, climate change, and habitat loss are driving ...

Over the past 20 years the U.S. butterfly population has declined 22%, a dramatic loss that has scientists concerned. "The easy number to think about is the total number of butterflies in your yard.

Still, researchers didn’t have enough data to include some of the most imperiled butterfly species, which probably experienced some of the steepest declines. And the data was quite likely biased ...

The study, published Thursday in the journal Science, is the most comprehensive tally of U.S. butterfly populations to date. Nick Haddad, a Michigan State University ecologist who co-wrote the ...

Researchers compiled data on more than five hundred butterfly species across the United States from 2000 to 2020. Some species are faring better than others, but overall, butterfly numbers dropped ...