The evidence for the higher-threshold interpretation — for flowers, for ritual, for meaning-making — is more ambiguous.

The importance of this distinction is not merely academic.

Whether Neanderthals engaged in intentional burial in the lower sense is reasonably well-supported by the cumulative evidence from Shanidar and from other Neanderthal sites.

Whether they engaged in it in the higher sense — whether they were doing something we would recognize as mourning, as honoring, as ritual — is the question that remains genuinely open.

And that question matters because it bears on what Neanderthals were cognitively capable of.