A fire can be a means of communication in certain situations, such as using smoke signals to send messages over long distances. Different patterns of smoke can convey different messages to those who understand the signaling system.

A swallow can be a means of communication in some cultures where certain bird behaviors or sightings are believed to convey messages or omens. For example, in some cultures, swallows are seen as symbols of love, fidelity, or good luck.

Rocks can also be a means of communication through methods like rock art, where images or symbols are carved or painted onto rocks to convey messages or stories. In ancient times, rocks were used as a form of communication to record events, mark territories, or transmit cultural information.