The hand of a bonobo ape lies on the head of another ape in the zoo in Frankfurt, Germany, Friday, December 15, 2017. (Photo by v/AP Photo)





Horses are seen in the snow in Kaufbeuren, Germany December 10, 2017. (Photo by Michaela Rehle/Reuters)





Horses are seen in the snow in Kaufbeuren, Germany December 10, 2017. (Photo by Michaela Rehle/Reuters)





A biologist holds a Magpie Querrequerre (Cyanocorax yncas) as 107 animals rescued from illegal wildlife trading rings and rehabilitated by the environmental agency CVC, are loaded into a Colombian Air Force plane to be transported to the north of the country for their release back into the wild, on December 12, 2017, at Marco Fidel Suarez Air Base in Cali, Colombia. The illegal trade of wildlife is considered as one of the main causes of the decline of natural populations worldwide. (Photo by Luis Robayo/AFP Photo)





A picture taken on November 28, 2017 shows wild boars at an enclosure set up by forest rangers in a northwestern district of Berlin. Thousands of wild boars call Berlin home, where they dig up gardens, cause road accidents and rampage through neighbourhoods. (Photo by Tobias Schwarz/AFP Photo)





A dog jumps to catch a snowball in Godewaersvelde on December 11, 2017 In France, 32 departments were placed on orange alert with winds of more than 100 kilometres forecast in some areas. In the northern Pas- de- Calais and Nord regions, some 20,000 homes were without electricity due to gale- force winds which affected supply, power provider Enedis said. (Photo by Philippe Huguen/AFP Photo)





African penguins, wearing red and green holiday garments, take a walk at the Hakkeijima Sea Paradise aquarium-amusement park complex in Yokohama, southwest of Tokyo, Tuesday, December 12, 2017. (Photo by Shizuo Kambayashi/AP Photo)





A grey seal and her pup on the beach at Horsey Gap, near Great Yarmouth, in Norfolk, England on December 15, 2017. This year a record number of grey seal pups were born at the east coast beach. (Photo by Joe Giddens/PA Wire)





Hoxton, a six months old Great Grey Owl, playing in the snow for the first time ever at the International Birds of Prey Centre on December 11, 2017 in Newent, England. (Photo by Paul Nicholls/Barcroft Images)





A goose flies past a swimmer in the Serpentine in Hyde Park, in London, Britain, December 12, 2017. (Photo by Clodagh Kilcoyne/Reuters)





A full grown female leopard looks up from inside a deep well that it fell into near a residential area on a hill on the outskirts of Gauhati, India, Wednesday, December13, 2017. Veterinarian and forest officials tranquilized and rescued the leopard before sending it to the state zoological park in Gauhati. (Photo by Anupam Nath/AP Photo)





Forest officials rescue a female leopard from a dry well after tranquilising it, at a residential area in Guwahati, India, December 13, 2017. (Photo by Anuwar Hazarika/Reuters)





Maru, a two-month-old King Penguin chick and the first successful hatching by the Jurong Bird Park in almost a decade, looks at an adult penguin from a Christmas theme enclosure in the Penguin Coast exhibit at the park in Singapore December 13, 2017. (Photo by Edgar Su/Reuters)





Monkeys hug amid snow at Huaguo mountain in Lianyungang, Jiangsu province, China December 14, 2017. (Photo by Reuters/China Stringer Network)





Squirrel Monkeys in London Zoo look for treats inside a Christmas stocking in their enclosure in London, Britain, December 14, 2017. (Photo by Clodagh Kilcoyne/Reuters)





A camel is seen as he is being brought for the foot surgery at the Dubai Camel Hospital in Dubai, UAE, December 11, 2017. (Photo by Satish Kumar/Reuters)





A smoke-filled sky filter orange light around a dog on the beach as the Thomas Fire continues to grow and threaten communities from Carpinteria to Santa Barbara on December 12, 2017 in Carpinteria, California. The Thomas Fire has spread across 365 miles so far and destroyed about 800 structures since it began on December 5 in Ojai, California. (Photo by David McNew/Getty Images)





Mute swans gather near the footpath as they look for food from tourists on the Round Pond in Kensington Gardens in London as snow falls, Sunday, December 10, 2017. (Photo by Alastair Grant/AP Photo)