Dracula fish

Scientists have discovered a highly unusual fish with fangs made of bone. Dubbed the "Dracula" fish, the creature is about 17mm (0.7 inches) long and has been found in only one Burmese stream.

The researchers, from London's Natural History Museum (NHM), believe the fish lost its teeth over evolutionary time, but later evolved the bone fangs. Writing in the Royal Society's journal Proceedings B, they say the males use the fangs to jostle each other - but do not appear to draw blood.

So what about fish with …garlic!

End in stem cell funding ban

US President Barack Obama has lifted restrictions on federal funding for research on new stem cell lines. Mr. Obama signed an executive order in a major reversal of US policy, pledging to "vigorously support" new research.

Ex-President George W Bush blocked the use of any government money to fund research on human embryonic stem cell lines created after 9 August 2001. Scientists say the research will lead to medical breakthroughs, but many religious groups are opposed to it.