True. But our earthly communications between ourselves is not. I don’t know if Carl Sagan’s novel _Contact_ is considered passé now, but the premise is that aliens first observed us through broadcast communications.
A real tour-de-force about alien contact is Greg Costikyan’s _First Contract._
Until we learn how to communicate with honey bees, we can forget about communicating with aliens.
Bee societies are quite complex and we have no clue about the complexity of their communication