Design and Trend: A new study has revealed that plant and animal species are becoming extinct at least 1,000 times faster than they did before humans entered the picture.
The study claims the world is "on the brink of a sixth great extinction"
The study compared past and present rates of extinction, and found a lower rate of extinction in the past than scientists had thought. Species are in fact disappearing from the planet about 10 times faster than previously believed.
Stuart Pimm of Duke University, and...