Yeah, where else would Kanagroos come from?
1. Kangaroos exist (Actually they might be a myth, but let's assume they exist and those silly Australians weren't lying)
2. Kangaroos are native to Australia
3. In order to be native to Australia, Australia must first exist.
4. Kangaroos exist and are native to Australia
5. Therefore Australia exists.
Thank you, thank you.