Environazism

Just like modern envirowackos, the Nazis were against slaughtering animals. They preferred slaughtering humans. I believe it’s not a mere coincidence.

http://en.wikipedia.org/wiki/Nazi_Germany#Environmentalism

The Nazis had elements which were supportive of animal rights, zoos and wildlife,[77] and took several measures to ensure their protection.[78] In 1933 the regime enacted a stringent animal-protection law.[79][80] Many NSDAP leaders including Adolf Hitler and Hermann Göring were supporters of animal protection. Several Nazis were environmentalists (notably Rudolf Hess), and species protection and animal welfare were significant issues in the regime.[81] Heinrich Himmler made efforts to ban the hunting of animals.[82] Göring was an animal lover and conservationist.[83] The current animal welfare laws in Germany are more or less modification of the laws introduced by the National Socialist regime.[84]

http://en.wikipedia.org/wiki/Animal_welfare_in_Nazi_Germany
In 1927, a Nazi representative to the Reichstag called for actions against cruelty to animals and kosher butchering. (…) Nazi Germany was the first nation to ban vivisection. (…)He announced to end the "unbearable torture and suffering in animal experiments" and told that those who "still think they can continue to treat animals as inanimate property" will be sent to concentration camps.(…) Goering also banned commercial animal trapping, imposed severe restrictions on hunting, and regulated the shoeing of horses. He imposed regulations even on the boiling of lobsters and crabs. In one incident, he sent a fisherman to concentration camp[12] for cutting up a bait frog.[