A worker desinfects next to a hippopotamus in a closed zoo in Skopje on March 17, 2020 amid spread of COVID-19, the novel coronavirus. The government has closed all land-based borders for foreign citizens and has also closed the two airports in the country, in Skopje and Ohrid. (Photo by Robert Atanasovski/AFP Photo)





A group of chimpanzees is seen at Lwiro Primates centre in Lwiro, South Kivu, the Democratic Republic of the Congo, 06 March 2020. The Democratic Republic of Congo is home to some of the world’s most biodiverse locations, however, conflict, poachers and lawlessness are a constant threat to the unique species inhabiting the forests. Conservation authorities have created a safe haven for threatened chimpanzees and several other species of monkey. Orphaned by poaching, saved from the pet or bushmeat trade, rescued primates are often traumatised and medically vulnerable. (Photo by Hugh Kinsella Cunningham/EPA/EFE)





Icelandic stallions play at a stud farm in Wehrheim near Frankfurt, Germany, Wednesday, March 18, 2020. (Photo by Michael Probst/AP Photo)





The head of a Bennett's Wallaby Joey emerges from its mothers' pouch at Yorkshire Wildlife Park in Doncaster, England on March 19, 2020, where the park still remains open to the public as coronavirus continues to hit the UK. (Photo by Danny Lawson/PA Images via Getty Images)





A water rail bird and reflection at Northumberland Park in North Tyneside in North East England on March 16, 2020. (Photo by Owen Humphreys/PA Images via Getty Images)





Two young lion cubs play the spring sunshine at the Blair Drummond Safari Park near Stirling, Scotland on March 19, 2020. The cubs, who have completed their immunisations and been introduced to the rest of the pride, were given full access to the large lion habitat in the drive-thru reserve at the Park last week. The two female lion cubs were born on 22nd November 2019, to Mum Libby and Dad Zulu. They bring the total pride at the Safari Park to nine. (Photo by Andrew Milligan/PA Images via Getty Images)





Students help with the newborn spring lambs at Moreton Morrell college in Warwick, England on March 18, 2020. (Photo by Jacob King/PA Images via Getty Images)





In this Sunday, March 15, 2020 photo, a leopard sits on a tree at Gir Interpretation Zone – Devalia near Gir National Park and Wildlife Sanctuary, also known as Sasan Gir in Gujarat, India. The Gir forests are the only natural habitat of the Asiatic Lions in Western India. (Photo by Ajit Solanki/AP Photo)





Wellington, a 32-year-old rockhopper penguin, meets other animals while exploring the Shedd Aquarium's Amazon Rising exhibit in Chicago, March 15, 2020. Without guests in the building, caretakers sent some of the penguins on a field trip. (Photo by Shedd Aquarium/Handout via Reuters)





Veterinary Eva Martinez feeds lemurs during a daily check up at the Madrid Zoo, Spain, Thursday, March 19, 2020. It's feeding time for the animals and it business as usual at the Madrid Zoo and aquarium despite the state of emergency in place across Spain. Just like on the almost empty streets of the Madrid capital, the zoo workers are keeping a minimum social distancing between themselves and when possible with the animals. The vast majority of people recover from the new coronavirus. According to the World Health Organization, most people recover in about two to six weeks, depending on the severity of the disease. (Photo by Bernat Armangue/AP Photo)





A kingfisher in Northumberland Park in Tyne and Wear, England holds a fish in its mouth on the first day of Astronomical Spring which begins on the day of the Spring Equinox March 20, 2020. (Photo by Owen Humphreys/PA Images via Getty Images)





Riva Hi Way, a baby Asian elephant calf born last month at Chester Zoo in England, makes her public debut alongside her mother 15-year-old Sundara Hi Way on Friday, March 20, 2020. The calf was born after a 22 month pregnancy. Asian elephants are listed as endangered by the International Union for the Conservation of Nature (IUCN) and the species is highly threatened in the wild by habitat loss, poaching, human-wildlife conflict and a deadly herpes virus called Elephant Endotheliotropic Herpesvirus. (Photo by Peter Byrne/PA Images via Getty Images)