How many species of humans have there been?
How many of said species are we responsible for killing?
How often did violence happen between the various species?
The only human species we've lived alongside were the Denisovians and Neanderthals right?
How did Homo erectus manage to survive so long? Longer than sapiens have been in existence.
Is the only difference between sapiens and sapiens sapiens that the second was after the cognitive revolution?
Why did Homo sapiens sapiens become the only humans to colonize the whole world when the first waves out of Africa were either destroyed or retreated back?
It's a really bad sign we're the last survivors of the genus Homo right?