In a novel study of baboons it has been found it is possible for the animals to recognise ‘words’ (real word letter sequences) as opposed to jumbled letter sequences. This may indicate we may need to rethink our understanding of symbols as abstractions to a simpler concrete interpretation as if they are plain objects.
I do think our belief that we, human beings, are something ‘better’ than animals is complacent. Afterall we still live in a physical world just like any other animal. The ability for abstraction has its limits still confined by the physical.
That’s one point for the theory of embodiment.