Side note: One thing I enjoyed about Rostock Zoo - and would have enjoyed even more if it was raining - is that all animal houses have at least one species that can only be seen indoors, even if it's just stick insects or something. Meaning that if it's raining, and you seek shelter in the nearest animal house, but the "main" animals are outside, you can still spend your time looking at another animal until the weather hopefully clears.
