Only things for which you have parsing rules and a parser and a thing that can form sentences. This is literally the CS definition. It just doesn’t require cons

Only things for which you have parsing rules and a parser and a thing that can form sentences. This is literally the CS definition. It just doesn’t require consciousness. Truly random tappings on a tree are not language, but if a type of bird signals that predators are nearby by striking a tree with their beak with consistent rules that are understood by other birds or creatures, then you have language. But you would have us not study these things because you think they are beneath us. I would instead say we are nothing special, and thus everything is special, or at least historically we always miss out on scientific insight when we arrogantly assume humans have X but other life forms do not.