I heard that some of the first animal-rights activists were Nazis.  In fact, National Socialism, according to a neo-Nazi I encountered on deviantART nearly two decades ago, espouses correlation between humans and Nature.  Unfortunately, there's no way I can dig up that conversation he had with someone concerning National Socialism and Nature, especially since there was something pointed out, which I remember, concerning how humans and animals are the same.  I forget the details, but while National Socialism recognizes that humans and animals are different, there is something correlated that perpetuates a sort of unity.

Of course, there is no way anybody is going to believe this.  National Socialism is "about killing Jews" and that's that.