Environmental groups say new construction threatens America’s last big cats.

Protesters gathered in Tucson this week to oppose federal plans for expanding border barrier construction through critical jaguar habitat in southern Arizona. The proposed 30-mile extension would cut through mountainous terrain where these endangered cats travel between Mexico and the United States.
Environmental activists warn that the new fencing could permanently sever wildlife corridors that jaguars have used for thousands of years. Only about 15 jaguars currently roam Arizona’s borderlands, making every migration route essential for the species’ survival in American territory.