There's been a lot of talk this week about Cheddar Man - but who or what is he?
You'd be forgiven for thinking he's the latest Marvel superhero. But he's actually one of the first modern Britons who lived 10,000 years ago, and he had dark skin and blue eyes.
To tell us more about Cheddar Man's origins, we were joined by Dan Bradley, Professor in Population Genetics at Trinity College Dublin.