The US-Mexico border wall splits countries and habitat. Animals like this bobcat (Lynx rufus) or its cousin the ocelot, would normally cross the border to hunt or mate. Photograph by Joel Sartore with Mitch Sternberg, Jennifer Lowry, and Naghma Malik, all U.S. Fish and Wildlife Services.
A USFWS wildlife biologist, runs a radio telemtery set for bobcat signals along the wall on the Lower Rio Grande NWR near Santa Maria. The wall bisects many of the tiny habitat tracts that remain along the border.