Word: unknown
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Genetic analysis of the finger bone has since indicated that it was a remnant of a previously unknown hominin, distinct from both early modern humans and Neanderthals - the heavily muscled Homo species that cohabited with Homo sapiens in the region from 50,000 to 30,000 years ago. Early modern humans, the results suggested, shared parts of Eurasia not only with Neanderthals but a totally different human-like creature, and all three probably came into contact (the finger bone was found within 65 miles of known Neanderthal and modern human sites). (See the top 10 new species...
...inherited only from the mother, and therefore does not give as complete a picture as nuclear genome sequencing. "In terms of mitochondrial DNA alone, this hominin was twice as distant from us as Neanderthals," says Krause. "The evidence is already very strong that we are looking at a previously unknown hominin, and possibly a new species." (See the top 10 scientific discoveries...
...says that because the Denisova hominin is assumed to be human, it's possible that there are many other unknown hominin fossils waiting to be discovered. He says paleontologists will continue to scour for remnants in Siberia and other northern regions, where cold weather helps preserve ancient DNA. Most early hominin fossils are from equatorial and tropical regions, where conditions for DNA survival are poor (indeed, although fossil records suggest a distinct hominin species, Homo floresiensis, co-existed with humans in Indonesia, genetic confirmation has proved elusive). (See the top 10 animal stories...
...While House Speaker Nancy Pelosi spent another day wooing votes for a package of still largely unknown changes to the Senate health bill that would bring it more in line with the House bill that passed last year, the GOP line of attack seemed to be gathering momentum. The delayed Congressional Budget Office estimate of how the revamped bill would affect the federal deficit has created a convenient opening for Republicans to shift the narrative from the substance of the Democratic legislation to the process by which it may be passed through Congress. (See the top 10 health care reform...
...subject notwithstanding, it was the kind of spirited swipe Crist backers had been waiting to hear. But it doesn't seem to be doing much damage to Rubio's surprising, and widening, lead in the polls. Before the relatively unknown 38-year-old Rubio became the darling of angry conservatives last summer, the race for the Florida Senate seat - one of the most important up for grabs in 2010, given the Sunshine State's bellwether status - looked like a walk on the beach for Crist, who led some polls by almost 30 points. Since then, Crist's bipartisan style, including...