. >> in an effort to limit inbreeding, in 2011 the aza, or the american zoological association, bannedanned breeding animals like this to get a white tiger, a white lion. what do you think of this ban? they say that is bad for the animals. >> of course they say it is not good to be -- >> to be bred strictly for these traits. >> they'll say it's not right to have animals in a confined area. it's on seven acres, the secret garden. and you can see they're happy, and they're good. >> it's a different world now. seaworld is now longer having killer whales perform, animals are not performing in circuses anymore. could you have this show today, given the way the world is and the way we're looking at animals today? >> no. today you would come and say, "look, i have white tigers." no. it will be no more. because it's a different world now. no question about it. >> c they want to get rid of their pain as quickly as possible. patients want something that works faster for them. why would somebody want to suffer if there is options that they don't need to. i think dentists will want to recommend se