A Kazakh hunter walks with his tamed golden eagle during an annual hunting competition in Chengelsy Gorge, some 150 km (93 miles) east of Almaty February 22, 2013. (Photo by Shamil Zhumatov/Reuters)

A sleeping giant, Boris the Polar bear underwent a full physical exam at the Point Defiance Zoo & Aquarium’s animal hospital in Tacoma, Washington, as a team of veterinarians, technicians and staff also performed a root canal and some minor eye surgery on the 27-year-old polar bear, on February 25, 2013. (Photo by Dean J. Koepfler/Tacoma News Tribune/MCT)

A bear chews the bars of a cage at Balint's estate, February 27, 2013. (Photo by Vadim Ghirda/Associated Press)

Lions look out of a cage at the Bucharest estate of one of Romania's most notorious gangsters, Ion Balint, known to Romanians as Nutzu the Pawnbroker, February 27, 2013. Authorities along with specialists of the animal welfare charity Vier Pfoten removed four lions and two bears that were illegally kept on the estate and reportedly used to threaten Balint's victims. Balint was arrested on February 22, with dozens of others on charges of attempted murder, depriving people of their freedom, blackmail and illegally holding arms. (Photo by Vadim Ghirda/Associated Press)

A sedated lion is carried on a stretcher, at the estate of Ion Balint, a notorious gangster, in Bucharest, Romania, February 27, 2013. Authorities along with specialists of the animal welfare charity Vier Pfoten, removed four lions and two bears that were illegally kept on the estate. Balint was arrested on dozens of other charges including attempted murder, depriving people of their freedom, blackmail and illegally holding arms. (Photo by Vadim Ghirda/Associated Press)

A Guadalupe fur seal passes by as SeaWorld animal rescue team member Heather Ruce feeds a California sea lion at their rescue facility in San Diego, February 26, 2013. Area rescue crews are seeing a higher than average amount of stranded sea lions this year, a trend likely caused by scarce food supply, according to the National Oceanic and Atmospheric Administration. (Photo by Gregory Bull/Associated Press)

Two pelicans stand in their enclosure on February 25, 2013 at the Zoo in Frankfurt, Germany. (Photo by Nicolas Armer/AFP Photo)

Two seals pups who were stranded last summer on the Belgian coast are released into the North Sea by the Sea Life Center of Blankenberge, on March 1, 2013. (Photo by Kurt Desplenter/AFP Photo)

This combo of photos shows a dead fire salamander from below (L) and up (R) with two heads on display at the Central Magazine of the Scientific Collections (ZNS) of Halle University in Halle, Germany, on February 22, 2013. The seven cm long salamander was raised by a breeder in Plauen and lived as conjoined twin for one-and-a-half years. (Photo by Jan Woitas/AFP Photo)

A newborn elephant drinks milk of its mother in the Zoo of Copenhagen February 25, 2013. The unnamed elephant was born early this morning. (Photo by Torkil Adsersen)

Hindu holy men try to load their horse on to a truck before leaving from Allahabad at the end of Maha Kumbh festival in India, February 27, 2013. (Photo by Rajesh Kumar Singh/Associated Press)

A newborn giraffe is nursed by his mother Aja Sabe at the Zoo in Gelsenkirchen, Germany, February 25, 2013. (Photo by Martin Meissner/Associated Press)

Farmer Lindy Haynes rubs the snout of her favourite pig named 'Peanut' outside her home on her property known as “Pigsville” in the New South Wales town of Mudgee, located 250 km (155 miles) west of Sydney March 2, 2013. Haynes believes that all farm animals should be “free range”, and allows the pigs, chickens, cats and dogs on her farm to move freely in and out of her house, with most sleeping inside at night. (Photo by David Gray/Reuters)

A cat watches passers-by from a pub window in central London, February 27, 2013. “Ray Brown” is the resident cat at the seventeenth century public house, “The Seven Stars” in the legal district of London. (Photo by Toby Melville/Reuters)

A worker of the Ramat Gan Safari Park Wildlife Hospital pulls a string tied to the claw of a female Imperial Eagle as he helps it to regain its flying ability at a park near Tel Aviv March 3, 2013. Brought to the wildlife hospital some four months ago with a broken wing, the eagle underwent surgery and physiotherapy. The training is needed in order to build the eagle's flight muscles, which were atrophied while it was recovering from the injury. The eagle will be released in a few days, safari spokeswoman Sagit Horowitz said on Sunday. (Photo by Nir Elias/Reuters)

Palestinians stand next to Devil Rays laid on a beach in Gaza City February 28, 2013. Gaza fishermen have caught more than 200 Devil Rays over the past two days, a rare haul that was proudly displayed on the beach before being carried off to market on donkey carts. (Photo by Ahmed Zakot/Reuters)

Abayed, a 6-year-old herding dog, walks with a specially-made wheeled walking aid outside the Humane Center for Animal Welfare near Amman, Jordan on February 26, 2013. The dog was hospitalized and treated after a bullet pierced his spine and paralyzed him two years ago. (Photo by Ali Jarekji/Reuters)

This is the hilarious moment an adult tiger gets ready to pounce on a meat covered snowman as he enjoys a wintery treat. Max, a two-year-old Amur tiger, took advantage of the icy storms sweeping across North America by playing in the snow. The big cat was seen licking and pouncing on the snowman, which was made with meat for eyes and bones for feet. The powerful beast then went on to entertain baying crowds as he rolled around on the floor and played football with the snowmans head. (Photo by Jim Schulz/Splash News)

A girl carries two guinea pigs she was given during a distribution of the animals to her community as part of a food security program of Action Against Hunger International (ACF) in Karete, Democratic Republic of Congo, on February 19, 2013. More than 500 guinea pigs were distributed to the locals by the non-profit organization that focuses mainly on nutrition and hunger prevention. (Photo by Jana Asenbrennerova/Reuters)

A cat sits on a wall in London, March 2, 2013. The London Zoo is launching what it says is the first interactive map of the British capital's domestic cats. The zoo said that its interface would allow Londoners to upload scientific survey-style photos, descriptions, and locations of their cats, creating a capital-wide census of the city's felines. (Photo by Kirsty Wigglesworth/Associated Press)

A Great Egret carries off a frog near the 11th fairway during the first round of the Honda Classic in Palm Beach Gardens, February 28, 2013. (Photo by Wilfredo Lee/Associated Press)

Dachshunds sit in their positions for the performance installation “Dachshund UN”, where the dogs were used to mimic a United Nations Commission on Human Rights meeting, in Toronto, February 28, 2013. Australian artist Bennett Miller created the show to question humanity's potential for creating a universal justice system. (Photo by Michelle Siu/The Canadian Press)

Honey peaks out of a dog truck at the ceremonial start of the Iditarod Trail Sled Dog Race in Anchorage, March 2, 2013. The competitive portion of the 1,000-mile race is scheduled to begin Sunday in Willow, Alaska. Honey did not run in the ceremonial start but will be in Kristy Berington's team when they hit the trial for the start in Willow. (Photo by Bob Hallinen/Anchorage Daily News)

Dogs wait to run in the Iditarod Trail Sled Dog Race in Willow, Alaska, March 3, 2013. 65 teams will be making their way through punishing wilderness toward the finish line in Nome on Alaska's western coast 1,000 miles away. (Photo by Rachel D'Oro/Associated Press)

Justin Fortier of St. Raymond, Quebec guides his sled dog team to the finish line to win the open class of the Laconia World Championship sled Dog Race in Laconia, N.H., March 3, 2013 (Photo by Jim Cole/Associated Press)