A swan pick moss from the quay wall of the river Main in Frankfurt, Germany, Monday, January 15, 2018. (Photo by Michael Probst/AP Photo)





Fiona, a baby Nile Hippopotamus has her gums rubbed by a zookeeper in her enclosure at the Cincinnati Zoo & Botanical Garden, Wednesday, January 10, 2018, in Cincinnati. Fiona, born six weeks prematurely at 29 pounds, well below the common 50-100 pound range, and required nonstop critical care by zookeepers to ensure her survival has become a international celebrity. She will reach her first birthday on Jan. 24. (Photo by John Minchillo/AP Photo)





A Harris Hawk sits on a fence prior to its owner using it to hunt for rabbits in the snow on January 18, 2018 in Leadhills, Scotland. Motorists are being warned to drive with caution as snow and icy conditions continue in the South of Scotland. (Photo by Jeff J. Mitchell/Getty Images)





Wild ducks swim in the icy waters of the Yenisei River outside Krasnoyarsk, Russia January 15, 2018. (Photo by Ilya Naymushin/Reuters)





Bulls fight during the Maghesangranti festival, which commemorates the start of the holy month of Magh, ushering in the coming of warmer weather and longer days, at Talukachandani village in Nuwakot district near Kathmandu, Nepal January 15, 2018. (Photo by Navesh Chitrakar/Reuters)





A fox walks past 10 Downing Street on January 16, 2018 in London, England. (Photo by Hannah McKay/Reuters)





A horse waits for the start of the “Luminarias” celebration on the eve of Saint Anthony's day, Spain's patron saint of animals, in the village of San Bartolome de Pinares, northwest of Madrid, Spain, January 16, 2018. (Photo by Juan Medina/Reuters)





A saltwater crocodile with a tyre around its neck is seen in Palu river in Palu on January 16, 2018. Indonesian conservation officials are racing against time to locate and rescue a saltwater crocodile that has had a tire wrapped around its for more than a year on the island of Sulawesi. (Photo by AFP Photo/ARFA)





A crocodile that has had a motorcycle tyre around its neck for at least two years appears on a beach in Palu City, Central Sulawesi, Indonesia on January 16, 2018. (Photo by Reuters/Antara Foto)





A small white dog stands between flying leaves in the city center in Frankfurt, Germany, on a stormy Thursday, January 18, 2018. A powerful storm lashed Europe with high winds and snow, killing at least four people in three countries, grounding flights, halting trains, ripping roofs off buildings and flipping over trucks. (Photo by Michael Probst/AP Photo)





A horse stands by a tree before the ritual in honor of Saint Anthony the Abbot in San Bartolome de Pinares, Spain, Tuesday, January 16, 2018. (Photo by Francisco Seco/AP Photo)





Three Iceland horses stick their heads together in their paddock in Wehrheim, Germany, Tuesday, January 16, 2018. (Photo by Michael Probst/AP Photo)





Endangered okapi born at ZSL London Zoo Zookeepers have named the newest arrival at ZSL London Zoo Meghan, after Meghan Markle, Prince Harry’s fiancée - in celebration of this year’s forthcoming royal wedding .Zookeeper Gemma Metcalf said: “A new birth is always cause for celebration, but Meghan’s important arrival is also a great opportunity to draw attention to the okapi, which is an extremely endangered species”. (Photo by Camera Press/ED/Picturedesk.com)