One of 'great extinction episodes in history' unfolding: report
                                
                                
                                    (Newser) -
                                    Humanity is rapidly wiping out the planet's species, sending wildlife populations plunging, the BBC reports. Pollution, habitat loss, and overfishing have cut wildlife numbers as much as a third since 1970 and wipe out 1% of species each year. One of the "great extinction episodes" in Earth's history also...