Professor Alison Brooks, an expert in African archaeology at George Washington University, US, said the study was "very well researched".

BBC: NEWS | Science/Nature | Study reveals 'oldest jewellery'

The researchers, from the University of Washington and University of California Berkeley in the US and the Natural History Museum, re-examined a number of bones that were first collected from what is now Lake Malawi in southern Africa.

BBC: New contender for oldest dinosaur

Sarantis Symeonoglou is professor of art history and archaeology at Washington University in St Louis, US. He has spent years trying to tie locations on Ithaki to details in the poem.

BBC: NEWS | Science/Nature | Drill hole begins Homeric quest

Lemore Hecht, a spokeswoman for Hertz, said the company started offering electric cars in 2010 for its cars-by-the-hour rental business, available in New York, Paris, Berlin, London, Washington DC, California and some US university sites.

BBC: Rental cars go electric

He can now move his fingers and toes again, and last month doctors at Washington University School of Medicine in St Louis, US, discovered his brain has maintained a near-normal ability to detect feeling and movement.

BBC: Reeve to make Smallville debut

Stokely Carmichael sang from the same song sheet and did so not in Algeria but on US college campuses such as George Washington University and Harvard beginning in 1970.

CENTERFORSECURITYPOLICY: Martin Peretz, an appreciation

Given its safety profile and how easy it is to make, it could quickly be tested as a potential new treatment for viral diseases ranging from dengue and yellow fever to hepatitis, say the US investigators from Georgetown University Medical Center in Washington.

BBC: Dogfish shark chemical squalamine 'stops human viruses'

"The real issue here is who can go to Washington and do good for us like Joe McDade did for us, " says Professor Leonard Champney, a University of Scranton political scientist.

CNN: By Brooks Jackson/

Joining us to talk about this year in the Roberts Court are Jeffrey Rosen, law professor at George Washington University, and Douglas Kmiec of Pepperdine University.

NPR: Legal Experts Weigh In on Court Decisions