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...social divides between the rich white and poor black communities, the consequences of which still haunt American societies now, many years after emancipation. The divide was reinforced by the determination to segregate black and white communities and discourage intermarriage, and by the reluctance to liberate black people from slavery from one generation to the next. This...

...social and economic fabric from such revolutionary stuff! Yet the young man's experiences over the next five years were to inspire a truly revolutionary theory that would replace the old supernatural dogma with an entirely naturalistic explanation for the diversity and adaptedness of life – evolution by natural selection. [Fossil bed in Patagonia [Image: Carlob under...

...socially and psychologically in terms of mixing with the right kind of social groups suited for their species. Laying hens might be suffering for their entire lives, more than a year or so. Breeding sows might be in stalls also for pretty much their entire lives. And then you have to say, what do we get out of this? Well, we produce food a little more cheaply. I don’t...