I have a few questions about Antarctic penguins in zoos. What temperatures do the penguins need? And can there be an outdoor Antarctic penguin exhibit?
SeaWorld San Diego's enclosed exhibit for Antarctic penguins (including Emperors) is maintained at about minus 3 or 4 Celsius (25-degrees F), with a water temperature of 6 C (43 F.)
(...) never going to happen.
It has already happened, so in the context of my post speaking of the future, I would still be correct.
Nope, as "never" includes the past, too. Maybe you should change your statement to "never again".
The only photo I've seen of the penguins in Munich showed them outdoors. Whether this was a one of a kind occasion or not, someone else might know. The cold winter of 1939 might have been of benefit for the outdoor husbandry at Berlin.