Microbes Trigger Largest Mass Extinction Ever

MIT scientists say almost everything on Earth died 252 million years ago in the largest mass extinction on the planet. While scientists have come up with a number of theories — from asteroids to volcanoes and raging coal fires — the research team from the Massachusetts Institute of Technology says the culprit was a methane-spewing microbe. According to the team's lead researcher, Daniel Rothman, MIT Professor of Geophysics, massive volcanic eruptions and chemical changes coincided...

© La Voix de l'Amérique - jeudi 3 avril 2014