![The Sixth Extinction: An Unnatural History](/assets/image-cache/media/images/Interviews and Reviews/Sixth Extinction: An Unnatural History/Photo_2.69b940c5.jpg)
The Sixth Extinction: An Unnatural History
by Georgia Woodroffe
Over the last 500 million years, Earth has experienced five mass extinctions. Each was marked by the obliteration of a significant proportion of all life on the planet within a geologically insignificant…
Read more- Dec 23, 2014