from the comment:<p><a href="http://www.boingboing.net/2010/02/01/the-secrets-of-octop.html#comment-702129" rel="nofollow">http://www.boingboing.net/2010/02/01/the-secrets-of-octop.ht...</a><p><pre><code>  "Turns out, on a scale of one to chimpanzee, octopuses are 
  probably somewhere close to matching wits with a dog"
  Interesting numbering system -- is one the only digit?</code></pre>