Intelligent beings don't like to be confined
To say nothing of being treated like common animals and forced
to perform tricks for a bunch of tourists.
The fact that orcas and dolphins are still in our zoos and being
treated like exotic fish shows how far we need to grow in this area.
The fact that these beings haven't regularly attacked swimmers
and smashed our boats in retribution for all that has been done
to them by us for centuries says a lot about their character and
intelligence.