The last male northern white rhino
The article frames man-made extinction as unethical toward animals. The real problem is the diminishing <i>biodiversity</i>. Every time a species goes extinct, we – as well as ALL future scientists – lose <i>invaluable</i> sources of data.<p>As one door closes an opportunity is forever lost. The effects of man-made extinctions reverberate through time and fill the pool of 
<i>unreachable truths</i> (Hofstadter).<p>It's unethical toward the whole human race as well.