[extropy-chat] cosmic silence

[kevinfreels.com]

>
> There does seem to be a record of hominid on hominid predation that is
> shown with homo erectus predation on early homo sap and homo n.. Such
> inter-hominid conflict may be a significant evolutionary contributor to
> humans natural xenophobia (just as our fear of reptiles, spiders, etc
> has a natural basis).
>
Where is this record? Please tell me where to find it. The most commonly
accepted thoughts in this area are that these different people co-existed
side by side for 30k+ years without signs of conflict.