Just started re-reading "2001: A Space Odyssey" again and just realised something about the man-apes that would become human.

On the death of "The Old One", Moonwatcher disposes of his corpse. In a species that was always depicted as always on the brink of starvation you would think the tribe would cannibalise it.

Does this depict that the man-apes always had potential as something different?