Rhinos set for stem cell 'rescue'
In a novel marriage of conservation and modern biology, scientists have created stem cells from two endangered species, which could help ensure their survival.
The northern white rhino is one of the most endangered animals on Earth, while the drill - a west African monkey - is threatened by habitat loss and hunting.
The scientists report in Nature Methods that their stem cells could be made to turn into different types of body cell.
If they could turn into eggs and sperm, "test-tube babies" could be created.