Janey Cotton's recent and riveting book "The Austerity Olympics" describes a country and a sports culture that would seem primitive not only to Jessica Ennis, Britain's 2012 heptathlete hopeful, but also to Milo of Croton, who won six titles at consecutive Olympics in the sixth century BC.

WSJ: Social Media

The researchers showed that it could be used to grow mesenchymal stem cells (MSCs), a kind of primitive cell derived from bone marrow that can be easily grown in culture.

BBC: Coral heals serious fractures