I saw a Steve Wallis Stealth Camping video on YouTube where he spent the night in an abandoned gas station and mentioned he wasn't worried because there are no rats in Alberta.

I still have a hard time wrapping my head around it. There's nothing unique about Alberta's geography other than the Continental Divide to the west with BC.

Why would Alberta be rat-free compared to its neighbours it shares a border with like Saskatchewan or Montana?

I saw a Steve Wallis Stealth Camping video on YouTube where he spent the night in an abandoned gas station and mentioned he wasn't worried because there are no rats in Alberta.

I still have a hard time wrapping my head around it. There's nothing unique about Alberta's geography other than the Continental Divide to the wesr with BC.

Why would Alberta be rat-free compared to its neighbours it shares a border with like Saskatchewan or Montana?