Thousands of years ago humans domesticated every possible large wild mammal species fulfilling all those criteria and worth domesticating with the result that there have been no valuable additions of domestic animals in recent times despite the efforts of modern science.
In Poland my audience is all women between 18 and 30. At U.S. conventions you have the fantasy and science fiction crowd. At Harvard you have an entirely different audience. It's so schizophrenic.
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The science of booby-trapping has taken a good deal of the fun out of following hot on the enemy's heels.
