Twilight Sparkle is a dirty little LIAR!

http://www.youtube.com/watch?v=bMHzvT6aLIU

 You! Twilight Sparkle! Claim you cannot! However, I happen to know you are really THIS GIRL:

http://images.wikia.com/powerpuff/images/5/5f/Bubbles_watering_flowers.gif

In disguise!

And this girl: http://upload.wikimedia.org/wikipedia/en/7/71/Bubbles_PPG.jpg

Can talk to these! http://pestcontrolburlington.net/wp-content/uploads/2011/10/squirrel_removal_Toronto.jpg

Therefore! Twilight Sparkle CAN speak squirrel!