A four-day old zebra foal stands in the zebra house of the Budapest Zoo in Budapest, Hungary, Thursday, January 8, 2015. The foal is the first animal born in the new year of 2015 in the zoo. (Photo by Attila Kovacs/AP Photo/MTI)

In this January 3, 2015 photo, a monkey carries her cub inside Machia Park in Villa Tunari in Bolivia's department of Cochabamba. Machia Park is a state park that serves as a refuge for wildlife, and is the beginning of Bolivia's section of the Amazon rainforest. (Photo by Juan Karita/AP Photo)

One of two spotted or laughing hyena (Crocuta crocuta) babies receives vermifuge during their medical examination in Jaszbereny Zoo in Jaszbereny, 77 kms east of Budapest, Hungary, 09 January 2015. The two cubs born in mid-November 2014 received vaccines, vermifuge, were weighed and examined profoundly during the checkup. (Photo by Janos Meszaros/EPA)

Two spotted or laughing hyena (Crocuta crocuta) babies sit in a pen after their medical examination in Jaszbereny Zoo in Jaszbereny, 77 kms east of Budapest, Hungary, 09 January 2015. (Photo by Janos Meszaros/EPA)

An Atlantic Bottlenose dolphin performs tricks with its trainer during a New Year's Dolphin Show in Russia's Siberian city of Krasnoyarsk, January 4, 2015. (Photo by Ilya Naymushin/Reuters)

A long-eared owl sits on a branch of a pine tree at an equestrian center in Cagnoncles near Cambrai, northern France January 5, 2015. Seven long-eared owls took up residence in a pine tree at an equestrian center as the long-eared owls congregate in winter in large conifers and form dormitories. (Photo by Pascal Rossignol/Reuters)

Ponta the monkey gestures to listen to a monkey trainer during their performance in Tokyo, Sunday, Jan. 4, 2015. (Photo by Shizuo Kambayashi/AP Photo)

Beluga whales and their trainers present “The heart of Ocean” show at the Harbin Polarland in the northern city of Harbin, Heilongjiang province January 6, 2015. The polar land themed park combining animal shows and polar land sights has had increased visitors during the annual Harbin International Ice and Snow Festival, the park said. (Photo by Kim Kyung-Hoon/Reuters)

An European bison feeds in a forest of the Nalibokskaya Pushcha Reserve, near the village of Rum, west of Minsk, January 6, 2015. The bison, a national symbol of Belarus, is the largest wild animal in the country, and several dozens of them live in this reserve, which has the largest forest in Belarus. (Photo by Vasily Fedosenko/Reuters)

An European bison feeds in a forest of the Nalibokskaya Pushcha Reserve, near the village of Rum, west of Minsk, January 6, 2015. (Photo by Vasily Fedosenko/Reuters)

A visitor takes a picture of a European bison in a forest of the Nalibokskaya Pushcha Reserve, near the village of Rum, west of Minsk, January 6, 2015. (Photo by Vasily Fedosenko/Reuters)

Sixteen-month-old Giant panda cub Bao Bao plays in the snow for the first time at the Smithsonian's National Zoo as a winter storm hits Washington January 6, 2015. The storm was part of a bitter cold snap freezing most of the eastern half of the United States, driving the mercury below zero in the Midwest, with possible freezing temperatures as far south as Atlanta later this week, forecasters said. (Photo by Devin Murphy/Reuters/Smithsonian's National Zoo)

A strawberry poison dart frog (Oophaga pumilio), which is part of the new “Land of Frogs” permanent exhibition at the Gamboa Rainforest Hotel on the outskirts of Panama City, January 7, 2015. (Photo by Carlos Jasso/Reuters)

A blue jeans dart frog, a morph of the strawberry poison dart frog (Oophaga pumilio), which is part of the new “Land of Frogs” permanent exhibition at the Gamboa Rainforest Hotel on the outskirts of Panama City, January 7, 2015. (Photo by Carlos Jasso/Reuters)

Long-tailed macaque babies are pictured inside a basket as police seized a truck smuggling them from Vietnam to China, in Changsha, Hunan province January 8, 2015. Police arrested 11 people on Thursday trying to smuggle at least 100 long-tailed macaques, which is a second grade protected species in China, local media reported. (Photo by Reuters/Stringer)

Long-tailed macaque babies are seen inside a basket as police seized a truck smuggling them from Vietnam to China, in Changsha, Hunan province January 8, 2015. (Photo by Reuters/Stringer)

A grass fed yearling on Raymond Palmer's beef cattle farm on January 9, 2015 in Lifford, Ireland. Irish beef has been approved for sale in the United States for the first time in almost 16 years following the lifting of the ban on European beef imports in place since the BSE outbreak in the late 1990s. Ireland is the first European country granted access to the US market. (Photo by Charles McQuillan/Getty Images)

Two California Sea Lions play in the pool at New York's Central Park Zoo following an early morning snowfall January 9, 2015. (Photo by Brendan McDermid/Reuters)

A California Sea Lion swims in the pool at New York's Central Park Zoo following an early morning snowfall January 9, 2015. (Photo by Brendan McDermid/Reuters)

A baby Hog Bawean deer playes with her family at Surabaya Zoo on January 9, 2015 in Surabaya, Indonesia. In the midst of prolonged internal management conflict over the treatment of animals, Surabaya Zoo starts the new year cheerfully with the presence of two new members, a baby Hog Bawean deer (Axis kuhlii) on January 1 and a baby Common Hippo (Hippopotamus amphibius) on January 2. (Photo by Robertus Pudyanto/Getty Images)

With the new year kicking off ZSL Whipsnade Zoo has taken the mammoth task of counting every single animal at the zoo on January 7, 2015 in Bedfordshire, England. Home to more than 2,500 animals, the Zoo's keepers are dusting off their clipboards as they prepare to tot up each invertebrate, bird, fish, mammal, reptile, and amphibian. Everything from tiny insects to huge mammals will be lining up to be counted, including sea lions, donkeys, chimps, and otters. (Photo by Tony Margiocchi/Barcroft Media)

A dog wears a scarf and coat while walking with its owner, Thursday, January 8, 2015 in New York. Dangerously cold air has sent temperatures plummeting into the single digits around the U.S., with wind chills driving them even lower. (Photo by Mark Lennihan/AP Photo)

Close up of a leopard gecko taken at Wrigglies Exotic Pets store on January 8, 2015 in Dunstable, England. (Photo by Tony Margiocchi/Barcroft Media)

Grom, Cheyenne Mountain Zoo's Amur tiger, rolls around in the snow Friday, January 2, 2015 in Colorado Springs, Colo. More winter weather is in the forecast for the Pikes Peak region with about an inch of new snow possible on Saturday. (Photo by Michael Ciaglo/AP Photo/The Colorado Springs Gazette)

An eight-month-old baby monkey (l) is hit by its sibling on January 2, 2015 at the “Monkey Mountain” zoo in Salem, Germany. (Photo by Felix Kästle/AFP Photo/DPA)

A long-eared owl (Asio otus) sits in a tree near Seelow in the district of Maerkisch-Oderland in eastern Germany, Saturday, January 3, 2015. (Photo by Patrick Pleul/AP Photo/DPA)

A female diver wearing a kimono feeds a ray during a new year feeding show at the Shinagawa aquarium in Tokyo on January 8, 2013. Visitors can watch the show until January 12. (Photo by Yoshikazu Tsuno/AFP Photo)

Little handicapped female polar bear Antonia rests on a trunk on a cold day at the zoo in Gelsenkirchen, Germany, Tuesday, January 6, 2015. The oldest bear in the zoo is 25 years old, but due to her dwarfism, it measures only 1.35 meters compared to 2.20 meter of her fellows. (Photo by Martin Meissner/AP Photo)

In this photo taken on Monday, January 5, 2015, a mallard duck attempts to walk on a frozen pond in Yukon, Okla. (Photo by Steve Gooch/AP Photo/The Oklahoman)

A rescued female grizzly bear lies in the snow in its new habitat at New York's Central Park Zoo January 9, 2015. The Central Park Zoo introduced to the public two new inhabitants on Friday, grizzly bears Betty and Veronica, who were rescued in 1995 by the Wildlife Conservation Society. They are living in a remodeled habitat previously occupied by polar bear Gus who died in 2013. According to the Society both bears had become too accustomed to humans, and local authorities considered them a danger to people. (Photo by Brendan McDermid/Reuters)

Malaya, right, a six month old Snow Leopard, pounces on her mother Zoe in the snow at the Central Park Zoo Tuesday, January 6, 2015 in New York. (Photo by Chad Rachman/The New York Post)