Human Extinction

Bill Bryson mentions Human Extinction in his book A Short History of Nearly Everything:

“Fortunately, that moment hasn’t happened, but the chances are good that it will. I don’t wish to interject a note of gloom just at this point, but the fact is that there is one other extremely pertinent quality about life on Earth: it goes extinct. Quite regularly. For all the trouble they take to assemble and preserve themselves, species crumple and die remarkably routinely. And the more complex they get, the more quickly they appear to go extinct. Which is perhaps one reason why so much life isn’t terribly ambitious.”

And humans as you will probably agree, are terribly ambitious specie, you can see it here, here and here for yourself.