Here's a question to someone who has read Brandom: where does he think human language comes from in the first place? My position is that language consists of t

Here's a question to someone who has read Brandom: where does he think human language comes from in the first place? My position is that language consists of the symbolic representation of distinctions and connections, and we humans are able to have these because as animals we have sense and brain systems that can make distinctions and connections about the real world. Does Brandom talk about how, according to the scientists, first animals developed these abilities, and then humans added in the symbolization? Or does he leave this out, and make it look as if language exists independently of the animal realm? Which would seem to imply it dropped down from the heavens, which would fit with Hegel's metaphysical idealism. Or perhaps he has some third position.