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Open Image ModalFrom AP: Seven weeks old Java male leopard Arjuna, left, and female leopard Sri Kandi, are pictured during their official presentation at the Tierpark Zoo in Berlin, Germany, Monday, March 5, 2012. The mother of the cubs, Shinta, was born at the Taman Safari park in Indonesia. (AP Photo/Michael Sohn) (credit:AP)
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Open Image ModalFrom AP: Meerkats relax under a heating light during cold temperatures in the Erfurt zoo, central Germany, Thursday, March 8, 2012. (AP Photo/Jens Meyer) (credit:AP)
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Open Image ModalFrom Getty: RIO GRANDE, PUERTO RICO - MARCH 10: An iguana looks on at the 12th hole during the third round of the Puerto Rico Open presented by seepuertorico.com held at Trump International Golf Club on March 10, 2012 in Rio Grande, Puerto Rico. (Photo by Michael Cohen/Getty Images) (credit:Getty)
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Open Image ModalFrom AP: The three tiger cubs Mila, Finja and Jegor play in their compound at the zoo in Cologne, Germany, Thursday, March 8, 2012. (AP Photo/dapd, Roberto Pfeil) (credit:AP)
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Open Image ModalFrom AP: The Erie Zoo's lowland gorilla Samantha, left, shares her space with Panda, a Dutch rabbit, at the zoo in Erie, Pa. on Thursday, March 8, 2012. (AP Photo/Erie Times-News, Greg Wohlford) (credit:AP)
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Open Image ModalFrom Getty: BIRMINGHAM, ENGLAND - MARCH 08: A Dalmation sits in it's kennel on Day one of Crufts at the Birmingham NEC Arena on March 8, 2012 in Birmingham, England. During the annual four-day competition nearly 22,000 dogs and their owners will compete in a variety of categories, ultimately seeking the coveted prize of 'Best In Show'. (Photo by Dan Kitwood/Getty Images) (credit:Getty)
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Open Image ModalFrom AP: Zebras go different ways in the Erfurt zoo, central Germany, Thursday, March 8, 2012. (AP Photo/Jens Meyer) (credit:AP)
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Open Image ModalFrom AP: In a Tuesday, March 6, 2012 photo provided by the Point Defiance Zoo & Aquarium, a newborn clouded leopard cub is hand-fed at the Point Defiance Zoo & Aquarium in Tacoma, Wash. An endangered clouded leopard gave birth to two healthy cubs, a male and a female. Zoo staff will hand-raise the cubs for the cubsí safety and will invite the public to vote on the cubsí names once the cubs are more settled. (AP Photo/Point Defiance Zoo & Aquarium) (credit:AP)
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Open Image ModalFrom Getty: BIRMINGHAM, ENGLAND - MARCH 11: A man holds a Staffordshire Bull Terrier on his shoulder during the fourth and final day of Crufts at the Birmingham NEC Arena on March 11, 2012 in Birmingham, England. During the annual four-day competition nearly 22,000 dogs and their owners will compete for a variety of accolades, ultimately seeking the coveted title of 'Best In Show'. (Photo by Dan Kitwood/Getty Images) (credit:Getty)
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Open Image ModalFrom Getty: BIRMINGHAM, ENGLAND - MARCH 08: Two dogs take in some last minute practice on Day one of Crufts at the Birmingham NEC Arena on March 8, 2012 in Birmingham, England. During the annual four-day competition nearly 22,000 dogs and their owners will compete in a variety of categories, ultimately seeking the coveted prize of 'Best In Show'. (Photo by Dan Kitwood/Getty Images) (credit:Getty)
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Open Image ModalFrom AP: A giraffe baby looks around in his new enclosure during the first contact with the herd of Rothschild giraffes in the Leipzig zoo, central Germany, Monday, March 5, 2012. The male, still nameless giraffe baby, was born in Leipzig, Feb. 22, 2012. (AP Photo/Jens Meyer) (credit:AP)
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Open Image ModalFrom Getty: ESHER, ENGLAND - MARCH 10: Runners flick up the mud at Sandown racecourse on March 10, 2012 in Esher, England. (Photo by Alan Crowhurst/Getty Images) (credit:Getty)
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Open Image ModalFrom Getty: A gray iguana walks in a fountain in downtown Caracas on March 7, 2012. AFP PHOTO/JUAN BARRETO (credit:Getty)
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Open Image ModalFrom Getty: A gray iguana walks in a fountain in downtown Caracas on March 7, 2012. AFP PHOTO/JUAN BARRETO (credit:Getty)
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Open Image ModalFrom Getty: A squirrel leaps toward a tree off an electrical wire in Los Angeles on March 6, 2012 in California. Squirrels have an affinity for power lines and are not electrocuted when running across them, but suffer the consequences only when their bodies make contact with the wire and either the ground, or a transformer. AFP PHOTO/Frederic J. BROWN (credit:Getty)
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Open Image ModalFrom AP: The three tiger cubs Mila, Finja and Jegor play in front of their mother Hanya in their compound at the zoo in Cologne, Germany, Thursday, March 8, 2012. (AP Photo/dapd, Roberto Pfeil) (credit:AP)
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Open Image ModalFrom Getty: BIRMINGHAM, ENGLAND - MARCH 11: An Afghan Hound lays on a grooming table during the fourth and final day of Crufts at the Birmingham NEC Arena on March 11, 2012 in Birmingham, England. During the annual four-day competition nearly 22,000 dogs and their owners will compete for a variety of accolades, ultimately seeking the coveted title of 'Best In Show'. (Photo by Dan Kitwood/Getty Images) (credit:Getty)
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Open Image ModalFrom AP: Two young cheetahs (Acinonyx jubatus) play in their enclosure in the zoo in Neuwied , Germany, Monday March 5, 2012. (AP Photo/dapd/ Tim Schulz) (credit:AP)
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Open Image ModalFrom Getty: A green Gecko is seen on a palm at Vallee de Mai forest, a UNESCO World Heritage site, in Praslin island on March 6, 2012. AFP PHOTO / ALBERTO PIZZOLI (credit:Getty)
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Open Image ModalFrom Getty: A BulBul bird sits on a branch at the Valle de Mai forest, a UNESCO World Heritage site, on the Praslin island on March 6, 2012. AFP PHOTO / ALBERTO PIZZOLI (credit:Getty)
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Open Image ModalFrom Getty: A Bronze Eyed Gecko at Valle de Mai forest, a UNESCO World Heritage site, on Praslin island on March 6, 2012. AFP PHOTO / ALBERTO PIZZOLI (credit:Getty)
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Open Image ModalFrom AP: Seven weeks old Java male leopard Arjuna, left, and female leopard Sri Kandi, are pictured during their official presentation at the Tierpark Zoo in Berlin, Germany, Monday, March 5, 2012. The mother of the cubs, Shinta, was born at the Taman Safari park in Indonesia. (AP Photo/Michael Sohn) (credit:AP)
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Open Image ModalFrom Getty: LONDON, ENGLAND - MARCH 05: A mouse sits on a platform at a London Underground station on March 5, 2012 in London, England. London's underground rail system, commonly called the tube, is the oldest of its kind in the world dating back to 1890. It carries approximately a quarter of a million people around its network every day along its 249 miles of track and 270 stations. The network has undergone several years of upgrade work and refurbishment in preparation for the Olympic Games which take place this summer. During this time the tube is expected to carry millions of visitors to and from the Olympic Parks. (Photo by Dan Kitwood/Getty Images) (credit:Getty)
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Open Image ModalFrom Getty: A skink at Valle de Mai forest, a UNESCO World Heritage site, on Praslin island on March 6, 2012. AFP PHOTO / ALBERTO PIZZOLI (credit:Getty)
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Open Image ModalFrom Getty: Aldabra Giant Tortoises are pictured at the botanic garden in Mahe on March 5, 2012. AFP PHOTO / ALBERTO PIZZOLI (credit:Getty)
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Open Image ModalFrom Getty: A leopard shark (below), swims past as Sydney Aquarium divers unveil a Greenpeace banner urging UNESCO to save the Great Barrier Reef, at the Sydney Aquarium on March 5, 2012. During a press conference at the Sydney Aquarium, Greenpeace Australia Pacific CEO Helen Gibbons issued a call to a UNESCO delegation on a two week mission to Australia, saying 'The coal boom in Queensland is threatening to turn the Great Barrier Reef into an industrial zone'. AFP PHOTO / Greg WOOD (credit:Getty)
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Open Image ModalFrom Getty: BIRMINGHAM, ENGLAND - MARCH 10: A Samoyen sits on a grooming table next to it's owner on day three of Crufts at the Birmingham NEC Arena on March 10, 2012 in Birmingham, England. During the annual four-day competition nearly 22,000 dogs and their owners will compete for a variety of accolades, ultimately seeking the coveted title of 'Best In Show'. (Photo by Dan Kitwood/Getty Images) (credit:Getty)
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Open Image ModalFrom AP: Cincinnati Zoo nursery keeper Dawn Strasser feeds four one-month-old hedgehogs, Thursday, March 8, 2012, at the nursery in Cincinnati. Two male and two female hedgehogs were born Feb. 4 and are being hand raised by the nursery keepers until they are old enough to be included in the zoo's animal outreach program. (AP Photo/Al Behrman) (credit:AP)
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Open Image ModalFrom AP: This image provided by the San Diego Zoo shows a technician holding a California condor egg that is beginning to pop, center right, or break from its shell, Thursday, March 8, 2012 in San Diego. The egg will hatch live on the San Diego Zoo Global Wildlife Conservancy's Condor Cam in the next two to three days. The Condor Cam is the public's first ever opportunity to see a live birth.(AP Photo/San Diego Zoo, Tammy Spratt) (credit:AP)
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Open Image ModalFrom AP: A meerkat observes its enclosure in the Erfurt zoo, central Germany, Thursday, March 8, 2012. (AP Photo/dapd/ Candy Welz) (credit:AP)
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Open Image ModalFrom Getty: A seagull waits as the rain prevents play from starting during day five of the first five day international cricket test match between New Zealand and South Africa at the University Oval in Dunedin on March 11, 2012. AFP PHOTO/MARTY MELVILLE (credit:Getty)
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Open Image ModalFrom AP: A baby joey hangs out in the pouch of Skippy, a six-year-old red kangaroo, at the Franklin Park Zoo in Boston, Wednesday, March 7, 2012. (AP Photo/Elise Amendola) (credit:AP)