With reguards to temperature, from what I've been told and observed, when a zoo is in open air, they go into a protective "low tide" mode. In this low tide mode they are much more tolerent of high temps and big temp swings, as they are often in full tropical sunlight bakeing for hours during low tides, I belive 115deg was around the upper edge of the safe heat range for most animals like zoo's at low tide.
Then, of course they get a hell of a temp shock when the first incomming big wave hits them and drops then instantly to 80ish. For some zoo's this is a daily occurance. For others, it only happens during extreme low tide days.