But these days we don't worry about saber-toothedtigers, and we do give a damn about our happiness.
这些日子我们不怎么关心剑齿虎，但是我们却的确在乎我们的快乐。
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We evolved to be wary of saber-toothedtigers and blizzards, but not of climate change - and maybe that's also why we in the news media tend to cover weather but not climate.