So many people in this thread are using the animal's inteligence as an argument....keeping to the original topic, which was PETA, they do not care how inteligent the animal is. EVERY animal, in their opinion, should never be kept in captivity or captured at all. So this thread, in it's purest form, is truly a debate as to whether ANY animal should be kept in captivity. I LOVE having fish tanks, i LOVE going to sea world, the zoo and other aquarium facilities. At these places, I learn more about the animals than I could ever hope to by reading books or articles or anything. I also LOVE learning. So for me, animals in captivity is okay, as long as man does its part to make their habitat as close to natural as possible. Obviously never hoping to creat an entirely natural habitat in a zoo or a living room, but the intent is good. And if you want to make an argument of intelligence, consider OUR intelligence, the intelligence of people. Who's to say that if an Orca were as smart as a human, that it wouldn't cage us up and make us do tricks?
I guess what I am trying to say, in a round about way, is that this is borderline ridiculous. Those animals that are bred in captivity don't know any different than the cage, pool, enclosure that they are in. Put them in the wild and they die...as we saw with Keiko (free willey).