Prey not hard-wired to fear predators

Are Asian elk hard-wired to fear the Siberian tigers who stalk them? When wolves disappear from the forest, are moose still afraid of them?

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<p><a href="http://www.physorg.com/news101559262.html">Prey not hard-wired to fear predators</a></p> <p>Are Asian elk hard-wired to fear the Siberian tigers who stalk them? When wolves disappear from the forest, are moose still afraid of them?</p>