science

Sure. But RF can go through dense bush or a forest even better than audio if it's high enough power - and without alerting any non-RF animals like audio would.

Or imagine animals with actual radar for finding prey. IR is good for that (I know snakes use it) but again radio could penetrate cover, and yet nothing uses it like that.

The main point though, is that RF exists despite non-use by life (excluding human technology of course). The same likely applies to dark matter and dark energy whatever they end up being.