how do you defend yourself against that? >> well, you could read "to free a dolphin." you can find it online. it's hard to capsulize that. no, they didn't die. they were set free. two navy dolphins. >> that's what you're saying should happen with all these animals, they should eventually be re-habituated and sent back into the wild? >> no, i'm not saying that. i'm saying that every orca and every dolphin in a concrete box can be taken to a more natural environment like a large sea pen, for example, where they can experience the natural rhythms of the sea, the tides and the currents and retired. and get involved in birth control. there isn't any reason a dolphin should be born in a concrete box simply to do tricks for us. that does not translate into conservation. >> rick o'barry, i appreciate your time tonight. thank you very much. let us know what you think at ac360.com. join the live chat. it's happening now. talk to viewers around the world.