If you are asking about the IDNYC, you can get a WCS membership (zoo membership good at all three zooa) but you can only redeem at The Bronx Zoo. More info is available at the IDNYC website.
Excellent answer from Eve Mosher.
You can use one in the botanical garden, so I would assume that it is valid here as well.
I guess you can. Call the zoo and find out
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