Honestly I can't say I'm not on the verge of switching over to Zurich here myself, as their enclosures are truly fantastic and they have some very cool taxa! Does anyone have any information on the zoo's work with carnivores outside of the zoo grounds?
As far as Bronx goes, they have extensive conservation programs for pretty much any carnivore one can think of. They have specific programs for all five Big Cats across their native ranges (including West African Lion populations, both African and Asian Leopards, and Snow Leopards in the Middle East), Cheetahs in Africa and Iran, Cougars in North and South America, lynx in Asia and North America, Andean Mountain Cats, Euplerids in Madagascar, Wolverines, Fishers, Giant Otters, Grey Wolves in Asia and North America, African Wild Dogs, Dholes, Maned Wolves, foxes including Arctic and Andean, bears including Brown in Asia (including the Middle East) and North America, Polar and Andean, Southern Elephant Seals, Walrus and other Arctic pinnipeds, and many other carnivores not listed as having specific programs for but definitely still worked with. I saw references to Sun Bear, both black bears, Sea Otter, Malabar Civet, and Asian mongoose conservation while looking for the above for instance. There is also the fact that the zoo has been able to provide a home for various carnivores injured or orphaned in the wild that could not survive on their own including the aforementioned Brown Bears and Cougars as well as their California Sea Lions, their Snow Leopard "Leo" from Pakistan, and I think their Western Spotted Skunks were wild rescues from Idaho as well.
~Thylo