The real meaning of the End and the Deers
Animals knew more than the humans; they just couldn't convey what they knew or sensed.
All the men where wrong; Koreans and Arabs and Hackers and stuff, it was just human kind's stupid speculations. All these stuffs couldn't explain the animals and birds' behavior.
It was much different or perhaps unfathomable.
The end shows an absolute simplicity - the girl at the end just didn't care now; All she chose to do is end up at a safe place and watch her favorite TV show and be Happy!!
There was nothing humans could do; feared animals couldn't express themselves and couldn't do anything either; it could be an end of the world - All one has to do is to die happy!