Not exact matches
«This scenario reconciles the discrepancy in the nuclear DNA and mitochondrial DNA phylogenies of
archaic hominins and the inconsistency of the modern human - Neanderthal population split time estimated
from nuclear DNA and mitochondrial DNA,» says researcher Johannes Krause, also of the Max Planck Institute for the Science of Human History.
Trinkaus and colleagues, describing the partial skulls in March in Science, won't speculate on whether they belonged to Homo sapiens transitioning
from archaic to modern, the elusive Denisovans or an as - yet - unidentifi ed
hominin species.
The researchers discounted two theories commonly put forward to explain protruding brow ridges: that they were needed to fill the space where the flat brain cases and eye sockets of
archaic hominins met, and that the ridge acted to stabilise their skulls
from the force of chewing.
Here we report newly discovered human fossils
from Jebel Irhoud, Morocco, and interpret the affinities of the
hominins from this site with other
archaic and recent human groups.
But ancient - DNA sequencing is beginning to shed some light on the issue.11 For example, by comparing a human HAR sequence with the HAR sequence of an
archaic hominin, researchers can estimate if the HAR mutated before, after, or during the time period of our common ancestor.12 This approach has revealed that the rate at which HAR mutations emerged was slightly higher before we split
from Neanderthals and Denisovans.3, 13 As a result, most HAR mutations are millions of years old and shared with these extinct
hominins (but not with chimpanzees).