Re:Nine Species of Human Once Walked Earth. Now There's Just...
by toasterlovin on Sunday December 15, 2019 @10:33PM
(#21800621)
The answer is probably that we were able to kill them because we were able to outbreed them. They fit into a similar ecological niche, so they would have been competition.
Is it possible we “simply” outbred them? If one population breeds slowly compared to another one of them will be swallowed by the other and not necessarily primarily through violent means.