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Scientists say humans are "mutilating the tree of life" and pushing our biosphere to the brink - and much quicker than previously thought.
Human activity has caused species groups to go extinct 35 times faster than they have over the past 500 years
'In the long term, we’re putting a big dent in the evolution of life on the planet,' says Gerardo Ceballos, conservation scientist at the National Autonomous University of Mexico
The passenger pigeon. The Tasmanian tiger. The Baiji, or Yangtze river dolphin. These rank among the best-known recent victims of what many scientists have declared the sixth mass extinction, as human actions are wiping out vertebrate animal species hundreds of times faster than they would otherwise disappear.
Human actions are wiping out vertebrate animal species hundreds of times faster than they would otherwise disappear. Researchers are calling for immediate political, economic and social action on unprecedented scales to prevent further extinctions.