Indeed I have a great fellow feeling for rats. The future of the world lies with the rat. God, at least as I imagine him, created a number of possibilities in case some of his prototypes failed—that is the meaning of evolution. One species would die out. I have never understood why Protestants object so much to the ideas of Darwin. Perhaps if he had concentrated on the evolution of sheep and goats he would have appealed to the religious sense.’ ‘But rats …’ I objected. ‘Rats are highly intelligent creatures. If we want to find out anything new about the human body we experiment on rats. Rats
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