Whipsnade Zoo big annual weigh in

A huge-scale operation is underway at Whipsnade Zoo, as keepers coax thousands of animals, including meerkats, reindeer and rhinoceroses, to step onto the scales for the annual weigh-in. As part of their regular check-ups, all creatures great and small are having their vital statistics recorded as a way of keeping track of the health and wellbeing of the 9,500 animals at the conservation zoo.