Some creation scientists also speculate that genetic abnormalities would have surfaced more rapidly in small, isolated, inbred populations, which may explain some of the unusual variations seen in H. erectus skulls.2
Alternatively, some H. erectus fossils may have been from specific people groups that dispersed from the Tower of Babel after the Flood. The Kow Swamp burial site would be a good example. When human languages were confused at Babel, the resulting isolated groups would have led to a large number of genetic bottlenecks and lineages of humans with unique suites of trait variations such as skin color, skeletal sizes, and skull shape variations. Some creation scientists also speculate that genetic abnormalities would have surfaced more rapidly in small, isolated, inbred populations, which may explain some of the unusual variations seen in H. erectus skulls.2