Human Ear On a Mouse

Artificial liver 'could be grown'
The team previously grew a human ear on a mouse
The scientist who grew a human ear on the back of a mouse has suggested it may one day be possible to "grow" a liver.

US researchers say the prospect of artificial livers has been brought closer because they have worked out how to grow deep networks of blood vessels - which has not been done before.
The potential new source of livers for transplants was welcomed by campaigners as a way of closing the gap between the number of organs needed and those available.
In the UK, there are only around 100 people waiting for a liver transplant, but the British Liver Trust said many people died before they reached the list.
However experts have warned the laboratory-based research is a long way from working livers.