It's been three months of mystery but finally we get to know.

It has been a mystery for three months, but a DNA test has finally revealed if the first penguin chick to successfully hatch at a Norfolk Sea Life sanctuary is a boy or girl.

Vets can only sex a penguin chick via a DNA test, but they have to be at least three months old before the feather sample can be taken.

This video has been optimised for mobile viewing on the BBC News app. The BBC News app is available from the Apple App Store for iPhone and Google Play Store for Android.

BBC News