Annual audit at the London Zoo

Reuters' photographer, Suzanne Plunkett captured these images from the London Zoo during the annual measuring of all the animals by zookeepers on August 20th, 2013.

According to the London Zoo's website, it is the home to more than 19,000 animals and "the measurements are recorded into the Zoological Information Management System (ZIMS), where they are shared with zoos across the world, and used to compare information on thousands of endangered species."