A nonprofit whose south Texas butterfly preserve stands in the way of a planned border wall called for a federal judge Monday to hinge construction on the results of an environmental assessment.

A fluttering butterfly makes most people smile with delight ... and many species live on both sides of the border. "And so I wouldn't be surprised if we saw the same patterns [in Canada ...

Jiao Liu Yang's appointment as the Green Ambassador marks a significant leap in her career. While she continues to teach swimming as an associate professor at Sun Yat-sen University, her influence now ...