Snakes inhabit our fears and stories. Why do they have such a hold on us? For my New York Times column this weekFor my New York Times column this weekFor my New York Times column this week, I take a look at a provocative theory that snakes have shaped our evolution since our primate ancestors first clambered through the trees. This week, a new study added a neurological twist to this idea, as scientists offered evidence that some of our neurons may be exquisitely sensitive to snakes. Check it out.