Has anyone ever considered the possibility that interbreeding between Neandertals and humans would have produced sterile individuals? They would have had the traits of both parents, but with no further reproduction, Neandertal DNA wouldn’t be found in humans today.

Ernie Casbeer
Oglesby, Texas

Researchers who argue for human-Neandertal hybrids say that fossil evidence argues against sterile, dead-end individuals.