A third of university research in Wales 'world class'

Nearly a third of the research by Welsh universities is of "world-leading" quality, says the body which compares work by every university in the UK.

The finding by the Research Excellence Framework (REF) has been called "a cross between the Olympics, the X Factor and a visit from Father Christmas" for academics.

Wales does slightly better than the UK as a whole in the two top categories.

The latest results improve on 2008, but are measured slightly differently.

Dr David Blaney from the Higher Education Funding Council for Wales spoke to BBC Wales.