Thousands of animals have had their vital statistics taken for London Zoo ’s annual weigh-in.
London Zoo weigh-in: Thousands of animals take to the scales for the mammoth annual task
Every single one of the zoo’s 19,000 animals took to the scales on Thursday, including lions, meerkats and penguins.
The huge task is done annually at the zoo so data can be shared with zoos around the world to help keep track of endangered species.
In order for zookeepers to take on the mammoth task of measuring all the animals, unusual tactics had to be used for the larger animals.
A set of scales was left hanging on a wire that squirrel monkeys stood on, while food was held at a height for giraffes.
To measure lions, zookeepers had to hang their breakfast at the top of a tree in order to try and get them to stretch at their full height.
Smaller animals, like penguins and meerkats were simply placed on top of scales to be weighed.