Solve the world's greatest mystery: Where Did All the Humans Go?

I started thinking about this as a joke.

But the more I think about it, the more I think that it must be done.

Thus I bring to you... Mountain Goat from Fort Pedro Informatics' game division.

 " Mountain Goat Mount Massive " by Darklich14. Licensed under CC BY 3.0 via Wikimedia Commons

"Mountain Goat Mount Massive" by Darklich14. Licensed under CC BY 3.0 via Wikimedia Commons