A black hole. A simple and clear concept, at least according to the hypothesis by Roy Kerr, who in 1963 proposed a "clean" black hole model, which is the current theoretical paradigm.
A single mutation around 30,000 years ago appears to be responsible for several traits common in East Asian peoples, from thicker hair to denser sweat glands.
Researchers have discovered that a new method of establishing hair and eye color from modern forensic samples can also do the same for ancient human remains.
Letting your body hair grow could be the best way to avoid getting bitten by bed bugs, say researchers at Sheffield University.
Forensic investigators will now be able to tell the hair color of an unknown perpetrator from DNA traces.
A team of intrepid scientists has successfully concluded a DNA analysis of human hair found preserved in Greenland’s permafrost.