Conservationists say Trump's border wall threatens to undo jaguar restoration

By the 1960s, the North American jaguar had vanished from the southern US borderland after being hunted to extinction.

Yet in the mid-1990s, there was a remarkable discovery: the jaguar had reappeared in the Sky Islands of Arizona, a region of rugged linked mountain ranges spanning the US and Mexico border that boasts the highest biodiversity in inland North America. Since then, the large cats have been seen over a dozen times in the region, reviving hopes of a full return of the elusive predators to the US.

https://www.theguardian.com/environment/2020/dec/01/trump-border-wall-threatens-jaguars-revival-arizona-sky-islands