A Gulf fritillary butterfly perches on a flower at the National Butterfly Center, which is home to several endangered plants and threatened animals. The Center is asking a federal judge to block government officials from building a border wall on its property.

A Gulf fritillary butterfly perches on a flower at the National Butterfly Center, which is home to several endangered plants and threatened animals. The Center is asking a federal judge to block government officials from building a border wall on its propert