BBC News By Thomas Mackintosh image copyrightReuters image captionIn the absence of visitors, the sociable pygmy goats have been taken to meet some of the zoo's other mammals It's been a year of unprecedented turmoil at London Zoo, which has had to close to the public for the first time since World War Two. Before Covid-19, the famous tourist attraction would often be bustling with visitors but during what is the third national lockdown, the zoo currently hosts very few humans. The Zoological Society of London (ZSL) looks after 20,000 animals across two sites, the main one in Regent's Park and at Whipsnade Zoo in Bedfordshire.