Two hippopotamus are fed with pumpkins at the Hanoi Zoo, in Hanoi, Vietnam, 25 October 2018. The zoo has been the home for more than 800 animals of over 90 different species, including three hippopotamus, since it was built in 1976. (Photo by Luong Thai Linh/EPA/EFE)

Mr Lordi aka Tomi Petteri Putaansuu of the Finnish hard rock band Lordi gets the second jab of his Covid-19 vaccination from nurse Paula Ylitalo (R) in Rovaniemi, Finland, on August 1, 2021, amid the novel coronavirus / COVID-19 pandemic. (Photo by Jouni Porsanger/Lehtikuva/AFP Photo)

People protest getting evicted from land designated for a Petrobras refinery, at a settlement coined the “First of May Refugee Camp”, referring to the date people moved here and set up tents and shacks to live in during the new coronavirus pandemic in Itaguai, Rio de Janeiro state, Brazil, Thursday, July 1, 2021. (Photo by Silvia Izquierdo/AP Photo)

A participant takes part in a “Zombie Walk” parade in Kiev, Ukraine on October 27, 2018. (Photo by Gleb Garanich/Reuters)

A receptionist dinosaur robot performs at the new robot hotel, aptly called Henn na Hotel or Weird Hotel, in Sasebo, southwestern Japan, Wednesday, July 15, 2015. From the receptionist that does the check-in and check-out to the porter that’s a stand-on-wheels taking luggage up to the room, the hotel, that is run as part of Huis Ten Bosch amusement park, is “manned” almost totally by robots to save labor costs. (Photo by Shizuo Kambayashi/AP Photo)

Four hundred buyers from around the world join 260 diamond manufacturing and trading firms on International Diamond Week as some 1,500 people are expected to trade more than billion of polished diamonds this week in Ramat Gan, Israel on February 16, 2016. The Israel Diamond Exchange is considered the most secure in the world, covering an area of 100,000 square meters with 3,500 bourse members. (Photo by Nir Alon via ZUMA Wire)

A Garba (folk dance) participant gets her back painted with an awareness message on vaccination against the Covid-19 coronavirus during the ongoing Navratri festival in Ahmedabad in western India on October 8, 2021. (Photo by Sam Panthaky/AFP Photo)

An artist wearing a coronavirus-shaped helmet and a protective suit stands next to a police barricade as he requests people to stay at home during an extended lockdown to slow the spread of the coronavirus disease (COVID-19) in New Delhi, India, April 30, 2020. (Photo by Adnan Abidi/Reuters)