It was designed by Bjarke Ingels, the renowned Danish architect, and cost $24 million to build. It was inaugurated by Queen Margrethe II, Denmark’s reigning monarch. And it now accommodates a celebrity couple with peculiar eating habits and an almost year-round animosity toward each other.

Officials at the zoo estimate that the combination of adorable animal starpower and innovative Danish design will draw an additional 400,000 visitors per year.“For such an iconic animal, we needed an iconic setting,” said Bengt Holst, the zoo’s director. “You wouldn’t put the Mona Lisa in an ugly frame”. But not everyone is a fan of the new house...