Comment on Rock engravings made by Homo Naledi ~300k years agoparentComments−mkl3yHarry Turtledove's book of short stories A Different Flesh is based on this idea, though with homo erectus, not homo naledi: https://en.wikipedia.org/wiki/A_Different_Flesh
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Harry Turtledove's book of short stories A Different Flesh is based on this idea, though with homo erectus, not homo naledi: https://en.wikipedia.org/wiki/A_Different_Flesh