Tired of losing lawsuits brought by conservation groups, the Bush administration issued a new interpretation of the Endangered Species Act that would allow it to protect plants and animals only in areas where they are struggling to survive, while ignoring places they are healthy or have already died out.

The opinion by U.S. Department of Interior Solicitor David Bernhardt was posted with no formal announcement on the department's Web site on Friday.

U.S. Fish and Wildlife Service Director Dale Hall, contacted in Washington, D.C., said the new policy would allow them to focus on protecting species in areas where they are in trouble, rather than having to list a species over its entire range.