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Uploaded on Jun 17, 2009
Dan Janzen imagines a future handheld DNA reader which when given any part of an animal (feather, skin, bones) could name the species.
For instance, dip it in a river and see what kinds of frogs and fish live upstream. Or give it a feather and see what bird has been flying in the area. Or lick it and see if you're coughing on account of the common cold or Ebola.