I have to object to this usian definition of communism as "ownership by the state". That's just horribly wrong, I have no idea where they teach such crap.
Communism implies ownership by the people, which is a different beast entirely*. Also the wealth distribution "from everyone according to their ability, to everyone according to their needs." It quickly becomes clear that communal species are, surprise surprise, as close to the commuist ideal as you can come.
* Yah. The real reason why communism doesn't work is literally because people aren't ants. The "owned by everyone" becomes "cared about by no-one" and "according to their needs" morphs to "some animals are more equal than others."