Obviosly one species is more intelligent then others... it is also arguable that humas are the smartest....but no I won't go into that... I get that higher intelligent animals probably do realise that they are being mistreated and can't roam to their full extent, especially if taken out of the wild. The only thing I am trying to say is why give the right to one animal to be free, and take the right away from another species? We humans are a selfish race, and I think it should be up to the person to make their own decision...if keeping a fish is okay to you, but keeping an orca isn't...fine...but just realise it's almost the same thing on different scales.
EDIT: over and out.
EDIT: over and out.