AKIPRESS.COM - The London Zoo put all of its animals on the scales Thursday in its annual weigh-in event, ABC News reports.
The Zoological Society of London's zoo is home to more than 19,000 animals. The weigh-in is an opportunity for zookeepers to make sure the information they have recorded is up-to-date.
The animals' weights will be added to an international database to share with zoos around the globe.
Zookeepers had to come up with some creative ways to get the animals to cooperate.
For instance, the all-female group of giraffes -- Maggie, Mollie and Ellish -- were lured over to a towering ruler with fresh vegetables to measure their height.
It's also important that zookeepers monitor the animals' general well-being and identify possible pregnancies since many species at the zoo are endangered and part of international breeding programs.