Public Lands · Wildlife
Hard lessons from the border
By Gary Paul Nabhan

Animals have been blocked from migration, their food chains disrupted. Now, exotic weeds, insects and diseases can use the lengthy scar as a nick point for invasion, ultimately disrupting far more than what human border-crossers can do. Photo by Greg Bulla on Unsplash
MoreThe wall with Mexico will come tumbling down
By Gary Paul Nabhan

But one needs to read only a bit of world history to realize that walls can come down as a quickly as they were put up.
Photograph by Greg Bulla, Courtesy of Unsplash
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