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Amount of mitochondrial DNA predicts frailty mortality in

Amount of mitochondrial DNA predicts frailty, mortality in humans

Chuck Bednar for redOrbit.com - Your Universe Online The amount of mitochondrial DNA (mtDNA) found in a person’s blood could be used to predict his or her overall risk of frailty and death from any cause 10 to 15 years before the first...

Latest Recent single origin hypothesis Stories

shell engraving
2014-12-05 06:27:40

The earliest known art by our species, Homo sapiens, is thought to have been made around 100,000 years ago, but a new study has revealed that our forbearers Homo erectus may have created simpler art forms at least 430,000 years ago.

neanderthals
2014-11-20 05:43:26

Based on the analysis of the nasal anatomy of Neanderthals and modern humans, a team of New York City researchers has determined that Neanderthals were not a subspecies of modern humans – as has been previously theorized.

Neanderthal
2014-10-23 10:23:31

Genetic analysis of DNA obtained from a 45,000-year-old modern human thigh bone has allowed researchers to narrow down the time frame in which mating first introduced Neanderthal genes into the human gene pool.

View_from_Gorham's_Cave,_Gibraltar
2014-09-02 04:50:51

Neanderthals have a reputation for being unintelligent brutes, but the discovery of a series of lines scratched into a rock wall in southwestern Europe suggests that the predecessors of modern humans might have had the intelligence and creativity to produce cave art.

Neanderthals and Modern Man
2014-08-21 07:47:02

Neanderthals died out approximately 10,000 years earlier than previously believed, due in part to the fact that modern humans arrived in Europe sooner than originally thought, an international team of researchers reported Wednesday in the journal Nature.

Inner Ear Fossil Shakes Up The Understanding Of Human Evolution
2014-07-08 12:25:28

Originally thought to be a sequential progression, human evolution has been shown to include a rich tapestry of species that interbred over thousands of years.

Long-Term Climate Factors Led Early Humans To Patchwork Evolution
2014-07-04 11:14:48

In the past, scientists concluded many of man’s defining qualities, such as legs made for walking upright and a large brain, evolved all at once. But according to a new study in the journal Science, shifts in climate caused these qualities to evolve separately.

tibetans and denisovans
2014-07-03 05:17:45

A gene acquired from an extinct cousin of modern humans is responsible for helping Tibetans to adapt to high altitudes, according to new research published online by the weekly science journal Nature on Wednesday.

“Mosaic Pattern” Of Cranial Evolution Supported By Study Of Neanderthal Skulls In Spain
2014-06-20 08:27:46

Analysis of several skulls found in a Spanish cave reveal that the trademark facial features of the Neanderthals appeared prior to their braincases, lending new support to the “mosaic pattern” theory.

Most Complete Ancient Skeleton From New World Sheds New Light On Human Migration
2014-05-16 07:33:27

An international team of scientists have uncovered the most genetically complete human skeleton from the New World yet, dating back more than 12,000 years.


Latest Recent single origin hypothesis Reference Libraries

Neanderthals
2013-10-03 16:03:35

The Neanderthals or Neandertals are an extinct species or subspecies of the genus Homo which is closely related to modern humans. They are known from fossils, dating back from the Pleistocene period, which have been found in Europe and parts of western and central Asia. The species gets its name from Neandertal, “Neander’s Valley”, the location in Germany where it was first uncovered. Neanderthals are classified either as a subspecies of Homo sapiens or as a distinct species of the...

Homo sapiens
2013-09-24 13:55:52

Homo sapiens is the scientific name for the human species. Homo is the human genus, which also includes Neanderthals and various other extinct species of hominid. H. sapiens is the only surviving species of the genus Homo. Modern humans are the subspecies Homo sapiens sapiens, distinguished from their direct ancestor, Homo sapiens idaltu (http://en.wikipedia.org/wiki/Homo_sapiens_idaltu). Subspecies of H. sapiens include Homo sapiens idaltu, roughly translated as “elder wise human” and...

Homo sapiens idaltu
2013-09-24 12:20:45

Homo sapiens idaltu is an extinct subspecies of Homo sapiens that lived nearly 160,000 years ago during the Pleistocene in Africa. “Idaltu” comes from the Saho-Afar word meaning “elder” or “first born”. The fossilized remains of H. s. idaltu were uncovered at Herto Bouri near the Middle Awash site of Ethiopia’s Afar Triangle in the year 1997 by Tim White, but were first revealed in 2003. Herto Bouri is a portion of Ethiopia under volcanic layers. By using radioisotope dating,...

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Word of the Day
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.