The link to Zimmermann’s article is here. I just read it and can recommend it if you’re interested in the subject. There is no reason in the world that these animals should be jumping through hoops in pools for human entertainment. No reason at all. Here, Zimmermann references Jean-Michel Cousteau:
After Brancheau’s death, Jean-Michel Cousteau, president of the Ocean Futures Society, made a videotaped statement in which he said, “Maybe we as a species have outgrown the need to keep such wild, enormous, complex, intelligent, and free-ranging animals in captivity, where their behavior is not only unnatural; it can become pathological,” he said. “Maybe we have learned all we can from keeping them captive.”
But given that this is a multibillion-dollar business for SeaWorld, I don’t expect meaningful change anytime soon … That said, I look forward to the documentary.