Zoo's, Animals in Circus's, Bullfighting, Big Game hunting should all be banned.
If anybody thinks animals in Zoo's are happy just because they get fed they're deluded, the animals are as miserable as you or I would be locked up 24/7 just so the owners can exploit them and make money.
Dolphins are miserable as fuck in Seaworld, they live a life in Chlorine (which they hate).
In the wild they can swim 100 klms a day and deep dive several times...but not in a concrete pool being made to do tricks for people camera's, it really shouldnt be allowed.