It's always fun to speculate - just how much of this stuff is made up, and how much of it is fact or based on fact? I mean, there are fish that can breathe air, and salamanders the size of a small crocodile, and animals like the Platypus that almost defy classification - surely a jackrabbit with antelope horns and powers of natural mimicry is not all that farfetched compared to those? I like to think so, anyway.