The research in the six (!) research stations of the Forschungsstation ('research station') at Zurich is real and the willful speculation to the contrary in this thread is a bit silly. It's also directly apparent to anyone with a research background, that real research is indeed conducted in the stations with e.g. many identical tanks in each research room for sample sizes that ensure sufficient statistical power, and these things are explained to the curious visitor in the excellent information panels. Indeed, the zoo moved a part of its behind the scenes research and breeding efforts into full public view with the research station.