"Human beings are a part of the animal kingdom, not apart from it. The separation of "us" and "them" creates a false picture and is responsible for much suffering. It is part of the in-group/out-group mentality that leads to human oppression of the weak by the strong as in ethic, religious, political, and social conflicts."

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Sometimes I think that the only effective and productive method of destroying speciesism would be for each uncaring human to be forced to live the life of a cow on a feedlot, or a monkey in a laboratory, or an elephant in the circus, or a bull in a rodeo, or a mink on a fur farm. Then people would be awakened from their soporific states and finally understand the horrors that are inflicted on the animal kingdom by the vilest species to ever roam this planet: the human animal!

— Gary Yourofsky