I believe every single species on this earth is a hybrid whether by natural or unatural ocurrances.
I watch a documentary about the Life and Nature around the Equator.
They said that most species around that coralls and all that are created by the mix of various species´s sperm and eggs they launch when they play.
And because they mix, new species evolves.
So in that sense they are all hybrids between 2 or more species at the same time.
Personally it´s also very possible that our ancestors had sex with some kind of pig and resulted in humans
Without hybrids, there is no evolution.