Extinction Events: Six Times the World Ended
Featured in Ripley's Believe It or Not!
While a meteor is presumed to have caused the last great extinction event in our planet’s history 66 million years ago, the Earth had already gone through many others in the thousands of millions of years that life existed before. Let’s look back through eons of time to explain the planet’s worst extinction events and why scientists think we may be in the middle of one right now.