World's Smartest Dog

If you want to read a fun Top Ten (OK, Top 7 in this case) about dogs, this is the one of you:  http://theweek.com/article/index/222628/the-7-most-newsworthy-dogs-of-201144

I'm Chaser.  I know over 1,000 words

You can read Chaser's story below.  I 'm super-duper impressed on how smart this dog is: http://www.nytimes.com/2011/01/18/science/18dog.html?pagewanted=all

I know a lot of words, and commands, but certainly not 1,000.