Nature interrupted: Impact of the U.S.-Mexico border wall on wildlife https://www.tucsonsentinel.com/local/report/070924_border_biodiversity/nature-interrupted-impact-us-mexico-border-wall-wildlife/
Between 2017 and 2021, the US government installed more than 450 miles of border barriers in the western end of the more than 1,900 miles of border between Mexico and the United States, and scientists on both sides of the border are now working to understand the consequences.
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