Proof you can breed the critters in captivity quite fine.
I see it a little differently - One swallow does not make a summer. What should two births prove ? Have you ever asked yourself how many beluga calves died immediately after birth or shortly thereafter ? Too many, far too many. Bottlenose dolphins are breeding in the 7th generation, but in the case of the beluga it is still necessary to remove animals from the wild and confine them in small concrete tanks - for what? In the interest of the animals ? But I forgot, zoo-enthusiasts do not criticize such a procedure, but look for irrelevant, pretextual arguments to defend it.
And as next (wrong) argument then comes, that the animals feel well in "captivity", because "only animals, which feel well, also reproduce". Even more wrongly it does not go any more, but unfortunately this weak-minded opinion still ghosts in innumerable heads of many people, inclusive zoo people, around and is apparently not eradicate. In any case, I can eat animals from factory farming with a clear conscience, gawk at elephants in the zoo and circus and wear fur clothing - the animals all feel good, because they breed. Of course, I could say that children were also born in the German concentration camps, fatherd there, but that would be a bad comparison, wouldn't it? But at the end of the day, man is only what a rat is - a mammal. But unlike humans, a rat colony stops reproducing as soon as the environment in which it lives no longer allows it. Biologically speaking, but in terms of behavior and reproductive strategy, humans are far away from being mammals.
"I'd like to share a revelation I've had during my time here. It came to me when I tried to classify your species. I realized that you're not actually mammals. Every mammal on this planet instinctively develops a natural equilibrium with their surrounding environment, but you humans do not. You move to another area, and you multiply, and you multiply, until every natural resource is consumed. The only way you can survive is to spread to another area. There is another organism on this planet that follows the same pattern. Do you know what it is? A virus. Human beings are a disease, a cancer of this planet. You are a plague, and we are the cure.
- Agent Smith to the Man Morpheus.
Master Windu woluld now say : AGREE !
Well then, my best congratulations to Kamogawa on this extraordinary breeding success. It only took 33 years and the life of several beluga whales.


The permit for their import to the United States was denied in September 2015
Very wise and sensible decision of the US government. I hope they will prohibit any further import of wild caught cetaceans in the future - best, that of elephants at the same time.