The Maryland Zoo may have its busy times, but a warm spring Sunday did not appear to be it as the only other people in the part were the rare family and a goodly number of Orthodox Jews. Most of the animals appeared largely bored, which I suppose is superior in some ways to either running for your life or having to run down something to eat but there were animals that appear to have adapted:
African Leopard, living the hard life of a top level carnivore
The Dik-Dik that cripples hunters with oppressive cute
No predator will touch the Okapi for fear of being labeled racist
The Arctic Fox and it's amazing camouflage
African Penguins: Nature's middle managers. He looks like he should have a fedora and briefcase.
The polar bears looked warm yet none of the primates were out. Maybe some other time.