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• Picture made available on 05 January 2011 of swans feeding in a flooded rice field in Motono-mura, Inzai city in Chiba prefecture, near Tokyo, Japan, 03 January 2011. In November 1992, a local man started to take care of six swans after they found shelter in a rice field close to his house. By feeding them and providing a flooded rice field as a place to rest, more and more swans came each year. Hundreds of swans are now coming and the place is now known as the 'Swan Sanctuary'.  (EPA/FRANCK ROBICHON) Cigni in un capo di riso a Inzai, Giappone

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• View of an anteater baby on its mother's back at the Santa Fe Zoo in Medellin, Colombia, 13 January 2011. The baby was born on 06 January and is the first born in captivity on the Colombian city's zoo.  (EPA/LUIS EDUARDO NORIEGA) Mamma e piccolo formichieri allo zoo di Santa Fe, Colombia

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• Two white lion cubs play at the zoo in Buenos Aires, Argentina, 05 January 2010. The cubs were born 45 days ago and their names will be selected by zoo visitors.  (EPA/LEO LA VALLE) Cuccioli di leone bianco nati allo zoo di Buenos Aires

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• A bird attacks a kite designed like it during the International Kite Festival in Ahmadabad, India, Monday, Jan. 10, 2011. Kite-flyers from 36 countries are participating in the festival which runs from Jan. 9. to Jan. 14. (AP Photo/Ajit Solanki) Uccello contro aquilone nei cieli di Ahmadabad, India

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• Le scimmie dello zoo di Guizhou, in Cina, si riparano dal freddo raggruppandosi in un abbraccio collettivo

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• A tit pecks at congealed lard near the village of Khatenchitsy, some 50 km north of Minsk, Belarus, 07 January, 2011. Reports state that cold temperatures currently dominate the weather in Belarus.  (EPA/TATYANA ZENKOVICH) Una cince (Paridae) si nutre di lardo a Khatenchitsy, Bielorussia

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• Mother gorilla Dian holds baby Quembo in her arms at the zoo in Frankfurt Main, Germany, 06 January 2011. The baby, born on 20 December 2010 is keeping well and her 22-year-old mother takes care of her child, according to the head of the zoo during the presentation of the family in Frankfurt.  (EPA/FRANK RUMPENHORST) Gorilli allo zoo di Francoforte: mamma Dian con suo piccolo Quembo

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• A Meishan pig digs in the snow at the Tierpark zoo in Berlin, Thursday. The Tierpark presents a Meishan pig as the good luck pig for the new year 2011. In Germany the pig is a traditional symbol for good luck at the beginning of a new year. (AP Photo/Markus Schreiber) Un maiale di razza Meishan allo zoo di Berlino

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• Kaidi, an African Lion, sits on a heated rock as snow falls at the Pittsburgh Zoo Thursday, Jan. 6, 2011. (AP Photo/Gene J. Puskar) Kaidi, leone africano allo zoo di Pittsburgh

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• Three Grivet Monkeys gather and play on a heating radiator to keep warm at a zoo in Qingdao city, eastern China's Shandong province, 06 January 2011. Cold waves have hit many areas of China.  (EPA/WU HONG) Scimmie Grivet (Aethiops di Chlorocebus) allo zoo di Qingdao, CIna

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• Polar bears fight at the Zoo in Prague, Czech Republic, Tuesday, Jan. 4, 2011. (AP Photo/Petr David Josek) Orsi polari allo zoo di Praga

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• Three white lion cubs are presented to the public at the city zoo in Buenos Aires, Argentina, Wednesday Jan. 5, 2011. The cubs were born on Nov. 16, 2010.  According to zoo officials these are the first white lions to be born in South America. (AP Photo/Eduardo Di Baia) Tre cuccioli di leone bianco nati allo zoo di Buenos Aires

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• A pig on the farm of Walter Babbe in Schlamersdorf, northern Germany, 07 January 2011. The farm of Walter Babbe is one of around 50 fattening farms in the northern federal state of Schleswig Holstein where dioxin contaminated food has been found. A fats manufacturer supplying the German ready-made farm feed industry knew as early as last March - nine months earlier than previously thought - about elevated dioxin levels in its fat products, a state official said 07 January 2011.  (EPA/BODO MARKS) Un maiale della fattoria di Walter Babbe a Schlamersdorf, Germania

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• A hippopotamus swims in his new enclosure Friday, Jan. 7, 2011, at the San Francisco Zoo in San Francisco. The hippopotamus spent 45 hours in a crate as he was transferred from the Topeka Zoo in Kansas, which was running out of space with three hippos, including the son of this one. Federal Express shipped the 3700 pound hippo free of charge. (AP Photo/Ben Margot) Un nuovo ippopotamo allo zoo di San Francisco

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• Sumatran Orang-utan mother Miamunah and her baby Dewi venture out into their outdoor enclosure for the first time since Dewi was born at the Melbourne Zoo, Australia, on 05 January 2011. Dewi is the second baby Orang-utan to be born at the zoo, the species  is endangered in the wild due to their forest habitat being cleared.  (EPA/DAVID CROSLING) Orangotanghi di Sumatra allo zoo di Melbourne, Australia

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• A cardinal sits in a hoar frost covered tree, Monday, Dec. 27, 2010, in West Des Moines, Iowa. (AP Photo/Charlie Neibergall) Un cardinale in un bosco dell'Iowa, USA

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• A young Nile crocodile is measured at the Tierpark Hagenbeck in Hamburg, Germany. The annual inventory at the Tropical Hall meant counting, weighing and measuring of animals of all kinds.  (EPA/ANGELIKA WARMUTH) Un piccolo esemplare di coccodrillo del Nilo allo Zoo Hagenback di Amburgo

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• In this photo released by the Wildlife Conservation Society, Zoey, a female snow leopard, navigates through the fresh snow at the Central Park Zoo in New York Thursday, Jan. 13, 2011. Well equipped for the cold of winter, snow leopards have padded feet and the thickest fur of any large cat. (AP Photo/WCS, Julie Larsen Maher) Zoey, femmina di leopardo delle nevi, allo Zoo di Central Park a New York

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• A live great horned owl is presented in a demonstration in front of a banner of the owl by Penn State University's Shaver's Creek Environmental Center on the final day of the 95th Pennsylvania Farm Show in Harrisburg, Pa., on Saturday, Jan. 15, 2011. (AP Photo/Lancaster Newspapers, Vinny Tennis) Un esemplare di gufo della Virginia (Bubo virginianus) presentato all'Università della Pennsylvania

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• A young lion yawns as it enjoys the warm sunlight, on Monday, Jan. 17, 2011, at the zoo of Zurich, Switzerland. (AP Photo/Keystone, Steffen Schmidt) Lo sbadiglio di un giovane leone allo zoo di Zurigo

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• A newly-born giraffe calf (R) which has yet to be named, plays with his mother Gia (L) at the Johannesburg Zoo in Johannesburg, South Africa, on 17 January 2011. The calf was born on 11 January and expanded the giraffe family at the Zoo to five.  (EPA/JON HRUSA) Baby giraffa allo zoo di Johannesburg, Sudafrica

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• Two ocelot cubs sit with their mother in their enclosure at the zoo in Berlin, Germany, 18 January 2011. The two cubs were born on 14 January. The wild cats, that are originated from South and Central America, were often hunted because of their fur. The endangered species is now recovering due to restrictions in the fur trade.  (EPA/STEPHANIE PILICK) Due cuccioli di ocelot (Leopardus pardalis) nati allo zoo di Berlino

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• Search dog Ronja lies in the snow while two members of the mountain rescue service simulate to search for a person after an avalanche accident, near the city of Garmisch-Partenkirchen, Germany, 19 January 2009. Every year, the mountain rescue service of the Bavarian Red Cross trains dogs to become sniffer dogs for avalanche victims.  (EPA/PETER KNEFFEL) Ronja, cane da salvataggio durante una simulazione presso Garmisch-Partenkirchen, Germania

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• Male tiger Coto watches the falling snow in the Zurich Zoo, 19 January 2011 in Zurich, Switzerland. He was joined at the zoo by female tiger Elena, who was brought from Munich Zoo in May 2010.  (EPA/STEFFEN SCHMIDT) La tigre maschio Coto sotto la neve allo zoo di Zurigo

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• Male tiger Coto watches his reflection in the water in Zurich Zoo, 19 January 2011 in Zurich, Switzerland. He was joined at the zoo by female tiger Elena who was brought from Munich in May 2010.  (EPA/STEFFEN SCHMIDT) Una tigre allo specchio nello zoo di Zurigo

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• A hippo breathes under water at the zoo in Berlin, Germany, Friday, Jan. 14, 2011. (AP Photo/Michael Sohn)

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• Japanese macaques bathe in the hot spring of Jigokudani Monkey Park in the mountains of Yamanouchi town, Nagano, central Japan, Thursday, Jan. 27, 2011. About 160 macaques, known as "snow monkeys," inhabit the park. (AP Photo/Hiro Komae)

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• A southern pochard duck cleans the head of a hippo at the zoo in Berlin, Germany, Friday, Jan. 14, 2011. Six of these ducks were introduced to the hippo enclosure at the beginning of this year. (AP Photo/Michael Sohn)

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• Orang-utan baby Duran walks through its enclosure at the zoo in Dresden, Germany, on Friday, Jan. 28, 2011. Duran was born on Jan. 30, 2010. (AP Photo/dapd, Matthias Rietschel)

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