> then there are the intentional burials from millions of years agoby a tiny hominum in SA, deap in a cave complex that requires extream cave crawling to get into

This is very heavily disputed and very much not consensus opinion. (see https://en.wikipedia.org/wiki/Homo_naledi#Possible_burials and https://www.sciencedirect.com/science/article/abs/pii/S00472...)