Firefighter gets world's most extensive face transplant
Canadian scientists break the blood-brain barrier
Supersized scanner to explore the body and hunt down disease
US state limits use of antibiotics on animals
Scientists probe elephant genes for cancer clues
Paralyzed man takes first steps using brain-computer interface, USA
Scientists use brainwaves to help disabled gain mobility
A device to zap away motion sickness
Deaf mice cured with gene therapy