The air in many national wilderness wonderlands is getting worse. As officials debate controversial new rules to curb pollution, scientists find the sources are surprisingly far-flung
June 2005 | By Charles Petit
The eruption of Mount St. Helens 25 years ago this month was no surprise. But the speedy return of wildlife to the area is astonishing
May 2005 | By David B. Williams
The voracious "Frankenfish" has turned up in the Potomac River, Lake Michigan and a California lake, sparking fears of an ecological Armageddon. But is the Asian import a monsteror the victim of monster hype?
February 2005 | By Helen Fields
The foreign-born frontiersman became one of the 19th century's greatest wildlife artists and a hero of the ecology movement
December 01, 2004 | By Richard Rhodes
Smithsonian scientists' study of the Chesapeake may benefit a wider world
August 2003 | By Lawrence M. Small
A California biologist discovered a new insect species and then caught evolution in the act
October 2002 | By Deborah Franklin
Before "ecology" became a buzzword, John Steinbeck preached that man is related to the whole thing
January 2002 | By Bil Gilbert
They're not animals and they're not plants, and biologists want to know a lot more about them.
March 2001 | By Adele Conover
July 1999 | By Michael Kernan
Holes in the canopy mean opportunity for new trees, but only if they are already waiting in the wings
May 1999 | By John P. Wiley, Jr.