International environmentalists claim they stopped a Mexican salt plant that endangered the gray whale. Actually, though, the Mexican government canceled the plant for reasons of its own.
At the same time hundreds of dead gray whales were washing up on beaches, their birthrate was plunging. Theories abound, but little hard data has been gathered to solve this environmental puzzle.
The Western Pacific gray whale, once thought extinct, clings to life in a remote Siberian sea. Biologists fear their research is serving as cover for massive oil drilling that could wipe out this lost tribe once and for all.