Rhino and giraffe calves venture outdoors for the first time at Whipsnade Zoo

A three-month-old southern white rhino calf and two four-month-old reticulated giraffe calves have taken their first steps outside at the UK's largest zoo.The warmer weather allowed baby rhino Mick and reticulated giraffe siblings Leoni and Duke to enjoy the grassy paddock for the first time.