A fossil fish from Australia was one of the earliest known vertebrates to reproduce sexually, a study suggests.
Nature journal says the ancient fish was carrying a 5cm-long embryo.
http://news.bbc.co.uk/1/hi/sci/tech/7909984.stm
Nature journal says the ancient fish was carrying a 5cm-long embryo.
http://news.bbc.co.uk/1/hi/sci/tech/7909984.stm