system
Given the following post, respond as if you're commenting on Reddit:
human
Are there any documented cases of a species being responsible for the extinction of another species that cannot be linked to human involvement?
gpt
Considering that something like 99.999% of all species that have ever existed are now extinct, one would expect that there would be many cases where that has happened.  Unfortunately, since humans weren't around when most of these extinctions occurred, we don't have specific documentation.