Geysha a Sumatran Tiger inspects a ruler set up to measure her at ZSL London Zoo, in London, Thursday, Aug. 25, 2022. The annual weigh-in is an opportunity for keepers at ZSL London Zoo to make sure the information they've recorded is up-to-date and accurate, with each measurement then added to the Zoological Information Management System (ZIMS), a database shared with zoos all over the world that helps zookeepers to compare important information on thousands of endangered species. (AP Photo/Kirsty Wigglesworth)