Researchers: Gamma-Ray Burst May Have Triggered Mass ExtinctionExtremely rare but incredibly powerful gamma radiation explosions would be strong enough to wipe out all life on the planet, say researchers.
Scientists: Bad Luck Killed The DinosaursScientists say dinosaur population was already under stress from other global calamities when the big rock hit.
Study: World On The Brink Of A "Sixth Great Extinction"Climate change and habitat encroachment is causing plant and animal species to become extinct 1,000 times faster than before humans arrived.
Carville: Republican Party 'Will Be Extinct' If Hillary Clinton Wins In 2016Democratic strategist and former Clinton adviser James Carville said the Republican Party knows the stakes against “presumptive” Democratic nominee Hillary Clinton, declaring that if the GOP loses the 2016 presidential election the party will be pushed into extinction.
'Jurassic Park' in Real Life: Experts Look at Bringing Back Extinct Species Bringing back the woolly mammoth, passenger pigeon or other extinct species is the subject of a conference in Washington.