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A view of the border wall looking toward Nogales, Arizona, on the left side of the wall, and Nogales, Mexico, on the right. Environmental activists and scientists say the 30-foot-high solid wall threatens animals such as jaguars and the Mexican gray wolf, and destroys natural habitats. (Lisa Elmaleh)
A view of the border wall looking toward Nogales, Arizona, on the left side of the wall, and Nogales, Mexico, on the right. Environmental activists and scientists say the 30-foot-high solid wall threatens animals such as jaguars and the Mexican gray wolf,