NPR's Lynn Neary reports that alien life forms are invading the nation's harbors and coastal waterways as a result of ballast water discharges from visiting ships.
Copyright 1995 NPR
NHPR is nonprofit and independent. We rely on readers like you to support the local, national, and international coverage on this website. Your support makes this news available to everyone.
Give today. A monthly donation of $5 makes a real difference.