A meerkat stands on scales as zookeeper Luke Taylor poses during the annual weigh-in at London Zoo, London, Britain, August 22, 2019.(Photo/Agencies)
A zookeeper cleans a giraffe enclosure at London Zoo, London, Britain, August 22, 2019. (Photo/Agencies)
Zookeeper Martin Franklin poses as he encourages Humbolt penguins onto scales during the annual weigh-in at London Zoo, London, Britain, August 22, 2019. (Photo/Agencies)
A zebra stands beside another at London Zoo, London, Britain, August 22, 2019.(Photo/Agencies)
