A hominin skull found in Dmanisi reveals that human ancestors migrating from Africa were more primitive than once thought.
By Ruth Williams | October 17, 2013
My comment: The single species theory takes the disarray from mutation-initiated natural selection and replaces it with nutrient-dependent ecological niche construction and pheromone-controlled social niche construction (via the metabolism of nutrients to species-specific pheromones). Pheromones control the physiology of reproduction, which is how they control nutrient-dependent adaptive evolution sans mutations.
Anyone willing stop thinking in terms of mutation-driven evolution should quickly realize that the single species theory integrates findings from Skull 5, and that those findings are consistent with what is already known about nutrient-dependent pheromone-controlled adaptive evolution via ecological, social, neurogenic, and socio-cognitive niche construction exemplified in species from microbes to man.
The complete skull that brings natural variations across 2.8 million to 10,000 years also links the more recent changes in our genome to the nutrient-dependent pheromone-controlled alternative splicings that made us modern humans, in the context of findings that confirm earlier work “…suggesting that the majority of variants, including potentially harmful ones, were picked up during the past 5,000–10,000 years.”
See for review: Nutrient-dependent/pheromone-controlled adaptive evolution: a model.