[AlotOfReading]

The jury is still out on exactly how intelligent other hominins were (and the extent of our involvement in their extinction). Regardless, the term human can apply to all of genus Homo and that's the sense that discussions of "human intelligence" typically use.

[nylonstrung]

The burial sites of Homo Naledi suggest they had developed burial rituals and primitive art which would mean non-Sapiens hominids were likely smarter than previously believed

[david-gpu]

The subject of Homo Naledi is very controversial. Take it with a grain of salt.