The Ghost with Trembling Wings: Science, Wishful Thinking and the Search for Lost Species

Three or four times an hour, eighty or more times a day, a unique species of plant or animal vanishes forever. It is, scientists say, the worst global extinction crisis in the last sixty-five million years -- the hemorrhage of thirty thousand irreplaceable life-forms each year. And yet, every so often one of these lost species resurfaces, such as the Indian forest owlet, considered extinct for more than a century when it was rediscovered in 1997. Like heirlooms plucked from a burning house, they are gifts to an increasingly impoverished world.