Giant pandas Cai Tao and Hu Chun are seen at Taman Safari zoo in Bogor, Indonesia on January 5, 2018. Cai Tao and Hu Chen arrived Indonesia in late September from Chengdu in China as part of China's 'Panda diplomacy. (Photo by Mahmut Atanur/Anadolu Agency/Getty Images)





A painted stork flies with a fish in its beak at a Zoological park on a cold winter morning in New Delhi, India, 02 January 2018. According to weather reports the mercury fell to 5.7 degree Celsius, and fog also reportedly disrupted rail, road and air traffic. (Photo by Harish Tyagi/EPA/EFE)





A spotted seal waits to be fed in the icy water at seal bay of Yantai City, east China's Shandong Province, January 12, 2018. (Photo by Shen Jizhong/Xinhua/Barcroft Images)





Two endangered White Rhino are seen together at the Joburg Zoo in Johannesburg, South Africa, 11 January 2018. The Joburg Zoo is an 55-hectare (140-acre) zoo established in 1904 and houses about 2000 animals of 320 species. (Photo by Kim Ludbrook/EPA/EFE)





A River stingray is measured by zookeeper Teresa Heusmann during the annual inventory at the Sealife in Hannover, Germany, January 11, 2018. (Photo by Holger Hollemann/DPA via AP Photo)





A wild animal, locally known as Binturung (Arctictis binturong) in a cage at Aceh Natural Resources Conservation Agency office at Banda Aceh, Indonesia, 12 January 2018. Aceh Natural Resources Conservation Agency received rare and protected animals from people who have them illegally as pets. The confiscated animals will soon be released to their habitat. (Photo by Hotli Simanjuntak/EPA/EFE)





Khansa, the Singapore Zoo's 46th orangutan baby, clings to its mother Anita during a media tour to showcase newborn animals at the Singapore Zoo on January 11, 2018. (Photo by Edgar Su/Reuters)





Khansa, an eight month old critically endangered Bornean orangutan shows off it's two front-teeth, at the Singapore Zoo on Thursday, January 11, 2018 in Singapore. The Singapore Zoo is active with its breeding programs as part of its wildlife preservation efforts. This is the Zoo's 46th successful orangutan birth. (Photo by Wong Maye-E/AP Photo)





Orangutan eating plastic bottle at Zoo on January 03, 2018 in Jakarta, Indonesia. Many people come to the zoo and throw their food and drink into animal cages because of lack of awareness of animal protection. (Photo by Afriadi Hikmal/Barcroft Images)





An endangered female high mountain gorilla from the Sabyinyo family climbs down from the bamboo forest within the Volcanoes National Park near Kinigi, northwestern Rwanda on January 11, 2018. Eugene Mutangana, the head of conservation at the Rwandan Development Board (RDB), said an average of 18 baby mountain gorillas had been born each year in Rwanda since 2005, when the east African nation began naming them in an annual ceremony. (Photo by Thomas Mukoya/Reuters)





An endangered baby high mountain gorilla from the Sabyinyo family eats inside the forest within the Volcanoes National Park near Kinigi, in northwestern Rwanda on January 11, 2018. (Photo by Thomas Mukoya/Reuters)





Endangered high mountain gorillas from Sabyinyo family react as they play inside the forest within the Volcanoes National Park near Kinigi, northwestern Rwanda on January 11, 2018. (Photo by Thomas Mukoya/Reuters)





Gihishamwotzi, 18, an endangered silverback high mountain gorilla from Sabyinyo family, rests atop trees inside the forest in the Volcanoes National Park near Kinigi, northwestern Rwanda on January 11, 2018. (Photo by Thomas Mukoya/Reuters)





An endangered baby high mountain gorilla from the Sabyinyo family plays inside the forest within the Volcanoes National Park near Kinigi, northwestern Rwanda on January 11, 2018. (Photo by Thomas Mukoya/Reuters)





An endangered high mountain gorilla from the Sabyinyo family is seen inside the forest within the Volcanoes National Park near Kinigi, northwestern Rwanda, January 9, 2018. A census of mountain gorillas due in March will likely show numbers have risen this decade, experts said during a ceremony to mark Rwanda's expansion of its Volcano National Park. (Photo by Thomas Mukoya/Reuters)





Albina, the Singapore Zoo's 24th successful pygmy hippo birth, follows its parent in their enclosure during a media tour to showcase newborn animals at the Singapore Zoo January 11, 2018. (Photo by Edgar Su/Reuters)





A red squirrel takes bird food at a tree in Berlin, Germany, January 13, 2018. (Photo by Hannibal Hanschke/Reuters)





Panda cub Yuan Meng, which means “the realization of a wish” or “accomplishment of a dream”, eats bamboos with her mother Huan Huan at the Beauval Zoo, in Saint-Aignan-sur-Cher, France, Saturday, January 13, 2018. France's first baby panda has made his grand public entree, acting like many five-month-olds – climbing all over his reclining mother who appeared to want to rest. (Photo by Zoo Parc de Beauval via AP Photo)





A fox walks through a cemetery at dusk on January 10, 2018 in Bath, England. Although the number of foxes in the UK is actually on the decline, according to a recent study the number of urban foxes in England has quadrupled in the past 20 years with an estimated 150,000 foxes in England, or about one for every 300 urban residents. (Photo by Matt Cardy/Getty Images)