I guess people don't realize how much of an impact they can have.  The article says if people would have done something they could have stopped the extinction of the animals.  But at the same time, it is people's action indirectly that caused the extinction, through contributing to climate change.  There is so much that can go out of balance in nature when people are involved.  When one species dies off, then everything in that ecosystem changes.  I guess the article was kind of interesting.  But what is the solution the problem they are talking about?  How should people intervene to save those animals?