If aliens came to Earth I think they would freak shit over dogs.
They'd see a Husky and be like "Hey, what's that?" and we'd say "A dog." and then they'd see a Chihuahua and be like "What's that?" and we'd say "A dog." and then they'd see a Rat and be like "Oh, is that a wild dog?" and we'd be like "No...that's a Rat..."