Once, millions of monarchs wintered in California. But climate change, habitat loss, widespread pesticide use and disease ...
The U.S. Fish and Wildlife Service is taking steps to list monarch butterflies as threatened species and designate seven ...
The endangered Schaus’ swallowtail butterfly is positively influenced by hurricanes, as new growth from damaged plants ...
The Western population of the monarch butterfly hit a near-record low with fewer than 10,000 found living in California this ...
In response to these figures, the USFWS issued a December 2024 proposal to list the monarch butterfly as a threatened species under the Endangered Species Act. “The iconic monarch butterfly is ...
In a new study, scientists pulled from a 35-year dataset to examine long-term population trends of the federally endangered ...
The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend ...
Just over 9,000 monarchs were counted in California last winter, the second lowest ever since the annual count began in 1997 ...