Sentences with phrase «with ancient hominins»

«This new work is important because for the first time it unambiguously demonstrates a third interbreeding [of modern with ancient hominins],» says David Reich of Harvard Medical School in Boston.

Not exact matches

We know roughly when that change occurred from experiments in which researchers made their own versions of ancient stone tools using either their left or right hands to chip — or knap — the tool into shape, before comparing them with the tools made by early hominins.

Then they compared the Dmanisi population with a range of fossils belonging to ancient African hominins alive at the same time, and used modern humans and chimpanzees as control groups.

Dr. Harmand, the lead author, says that the Lomekwi 3 artifacts show that at least one group of ancient hominin started intentionally «knapping» stones — breaking off pieces with quick, hard strikes from another stone — to make sharp tools long before previously thought.

DNA extracted from the bone belongs to a mysterious ancient hominin that last shared an ancestor with our species and Neanderthals about a million years ago.

An international team of scientists, including one from the University of Colorado Denver and another from the University of Colorado Anschutz Medical Campus in Aurora, announced the discovery Thursday of a new species of hominin, a small creature with a tiny brain that opens the door to a new way of thinking about our ancient ancestors.

But the new adult skull shows that the hominins combined this ancient feature with a small, lightly built «modern» face — one that the researchers say is virtually indistinguishable from H. sapiens.

These environmental records, in combination with ancient tools that have been excavated from archeological sites within Olorgesailie, help tell the tale of a hominin species that could very well be the ancestor of modern humans.

Our ancestors mated with another species of ancient hominins, the Denisovans, on at least two occasions.

All the suggested anatomical and physiological adaptations can be explained by other hypotheses, which fit much better with what we actually know about the ecology of ancient hominins.

DNA analysis gives clues to how the ancient hominin's population split and how they interacted with modern humans.

«While the precise implications of the CI eruption for cultures and livelihoods are best understood in the context of archaeological data sets,» write Black and colleagues, the results of their study quantitatively describe the magnitude and distribution of the volcanic cooling and acid deposition that ancient hominin communities experienced coincident with the final decline of the Neanderthals.

«For me personally, I think Africa is still a strong contender for the split between chimpanzees, bonobos and whatever ends up with us, ancient hominins, but they are certainly putting forward a case in these two papers that is well worth archaeologists, paleoanthropologists, experts in the field, looking again at the record and thinking of if the African story does still stack up.»

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).