For as long as there has been life on earth, there have been new species arising and others disappearing. A handful of times, the rate of disappearances has temporarily skyrocketed during what scientists call mass extinction events. Scientists say we’re in the midst of the planet’s sixth such event – this one of our own making. Note: A longer version of this interview originally aired on August 17, 2015. With animals going extinct at one thousand times the natural rate, it can be easy to lose