what is art anyway?

And I think it boils down to this. Art is different for every viewer, and I would argue that most of what we humans achieved, we did so because we wanted to procreate, and making beautiful things helped us convince the ladies. I think what we now understand is art resulted from this. So a bird singing a beautiful song or a fish arranging pebbles on the sea floor might be the same precursor of art than what our ancestors scratched into a stone some million years ago.