This is the thread for those moments.
If you are lucky someone might actually offer an explanation for them.
Edit: This spoiler is about Batman Returns and why it's driving me crazy.
I mean, crocodiles and alligators I would understand, rats would be a possibility, even otters and ducks would be understandable, but penguins!? I mean...what!?
Ok, so they might have escaped from a zoo, but still, they would need a decent amount of fish to survive, ok, so it rains all the time in Gotham so it is possible that there are some fish swimming around, but you'd think that the pollution would atleast stunt the growth of a sewer-dwelling penguin tribe. Or? Then again there are a lot of corpses around in that city, which could provide good food for the fish which the penguins would eat, but still. Penguins? In the sewer?