Tuscon -- U.S. biologists say the 700-mile security wall under construction along the United States-Mexico border could significantly threaten wildlife.
The scientists said the wall would alter the movement and The scientists said the wall would alter the movement and "connectivity" of wildlife and the animals' potential isolation might be a threat to populations of some species.
But the researchers said technology and design alterations could dramatically improve the potential for animals to move more freely between the two countries.
