[Fedora]

"(I agree with Professor Templeton)"

Me, too. I've seen variations of this theory debated for a while. It ties into the debate that became vocal in the 1990s about whether or not Neanderthals should be regarded as a separate species, which involves a lot of issues. I don't think these issues have been resolved enough to reach any conclusions on this.

[ValerieUSA]

The headline itself is confusing. It assumes there is more than one human species. I think there is only one human species. But I am not such an authority as "study."
Our Species Mated With Other Human Species, Study Says