GERMANY-ANIMALS-POLAR BEAR(01 of22)
Open Image ModalOne of the16-weeks-old polar bear twins plays in his enclosure in the zoo in Munich Hellabrunn, southern Germany, on April 7 , 2014. The two little polar bear cups were born in the zoo of Munich on December 9, 2013 and were baptized Nobby and Nela on April 7, 2014. AFP PHOTO/CHRISTOF STACHE (Photo credit should read CHRISTOF STACHE/AFP/Getty Images) (credit:CHRISTOF STACHE via Getty Images)
Polar bear cubs explore her whole enclosure(02 of22)
Open Image ModalMUNICH, GERMANY - JUNE 26: Polar bear cubs Nela and Nobby swim in their enclosure at Tierpark Hellabrunn in Munich, June 26, 2014. The seven months old polar bear cubs are now allowed to explore their whole enclosure with mother Giovanna on June 26, 2014. The two little polar bear cups were born in the zoo of Munich on December 9, 2013 and were baptized Nobby and Nela on April 7, 2014. (Photo by Lukas Barth/Anadolu Agency/Getty Images) (credit:Anadolu Agency via Getty Images)
GERMANY-ANIMALS-POLAR BEAR(03 of22)
Open Image ModalThe 16-weeks-old polar bear twins Nobby and Nola play in their enclosure in the zoo in Munich Hellabrunn, southern Germany, on April 7 , 2014. The two little polar bear cups were born in the zoo of Munich on December 9, 2013 and were baptized Nobby and Nela on April 7, 2014. AFP PHOTO/CHRISTOF STACHE (Photo credit should read CHRISTOF STACHE/AFP/Getty Images) (credit:CHRISTOF STACHE via Getty Images)
GERMANY-ANIMALS-POLAR BEAR(04 of22)
Open Image ModalHalf-a-year old polar bear twins Nobby and Nela explore their new outside pool enclosure at the Hellabrunn zoo in Munich, southern Germany, on June 26, 2014. The two little polar bear cubs Nobby and Nela were born in the zoo of Munich on December 9, 2013. AFP PHOTO/CHRISTOF STACHE (Photo credit should read CHRISTOF STACHE/AFP/Getty Images) (credit:CHRISTOF STACHE via Getty Images)
Polar bear cubs explore her whole enclosure(05 of22)
Open Image ModalMUNICH, GERMANY - JUNE 26: Polar bear cubs Nela and Nobby swim in their enclosure at Tierpark Hellabrunn in Munich, June 26, 2014. The seven months old polar bear cubs are now allowed to explore their whole enclosure with mother Giovanna on June 26, 2014. The two little polar bear cups were born in the zoo of Munich on December 9, 2013 and were baptized Nobby and Nela on April 7, 2014. (Photo by Lukas Barth/Anadolu Agency/Getty Images) (credit:Anadolu Agency via Getty Images)
Polar bear cubs explore her whole enclosure(06 of22)
Open Image ModalMUNICH, GERMANY - JUNE 26: Polar bear cubs Nela and Nobby swim in their enclosure at Tierpark Hellabrunn in Munich, June 26, 2014. The seven months old polar bear cubs are now allowed to explore their whole enclosure with mother Giovanna on June 26, 2014. The two little polar bear cups were born in the zoo of Munich on December 9, 2013 and were baptized Nobby and Nela on April 7, 2014. (Photo by Lukas Barth/Anadolu Agency/Getty Images) (credit:Anadolu Agency via Getty Images)
Polar bear cubs explore her whole enclosure(07 of22)
Open Image ModalMUNICH, GERMANY - JUNE 26: Polar bear cubs Nela and Nobby swim in their enclosure at Tierpark Hellabrunn in Munich, June 26, 2014. The seven months old polar bear cubs are now allowed to explore their whole enclosure with mother Giovanna on June 26, 2014. The two little polar bear cups were born in the zoo of Munich on December 9, 2013 and were baptized Nobby and Nela on April 7, 2014. (Photo by Lukas Barth/Anadolu Agency/Getty Images) (credit:Anadolu Agency via Getty Images)
GERMANY-ANIMALS-POLAR BEAR(08 of22)
Open Image ModalHalf-a-year old polar bear twins Nobby and Nela explore their new outside pool enclosure at the Hellabrunn zoo in Munich, southern Germany, on June 26, 2014. The two little polar bear cubs Nobby and Nela were born in the zoo of Munich on December 9, 2013. AFP PHOTO/CHRISTOF STACHE (Photo credit should read CHRISTOF STACHE/AFP/Getty Images) (credit:CHRISTOF STACHE via Getty Images)
GERMANY-ANIMALS-POLAR BEAR-ALTERNATIVE CROP(09 of22)
Open Image ModalALTERNATIVE CROP - One of the16-weeks-old polar bear twins drinks from a water puddle in their enclosure in the zoo in Munich Hellabrunn, southern Germany, on April 7 , 2014. The two little polar bear cups were born in the zoo of Munich on December 9, 2013 and were baptized Nobby and Nela on April 7, 2014. AFP PHOTO/CHRISTOF STACHE (Photo credit should read CHRISTOF STACHE/AFP/Getty Images) (credit:CHRISTOF STACHE via Getty Images)
UKRAINE-RUSSIA-CRISIS-SANCTION-FOOD-ANIMAL(10 of22)
Open Image ModalA polar bear takes a sun bath in Moscow Zoo in Moscow on August 8, 2014. Russia\'s drastic ban on food imports from Europe has claimed it first victims -- the rather choosy animals at Moscow zoo. Keepers at the zoo, one of Europe\'s oldest, have been sent scrambling to adjust the menus for its animals, which rely heavily on Dutch vegetables and Polish apples. The apples are a particular favourite of the zoo\'s bears, the animals that symbolize Russian virility and independence. AFP PHOTO/KIRILL KUDRYAVTSEV (Photo credit should read KIRILL KUDRYAVTSEV/AFP/Getty Images) (credit:KIRILL KUDRYAVTSEV via Getty Images)
GERMANY-ANIMALS-POLAR BEAR(11 of22)
Open Image ModalHalf-a-year old polar bear twins Nobby and Nela explore their new outside pool enclosure at the Hellabrunn zoo in Munich, southern Germany, on June 26, 2014. The two little polar bear cubs Nobby and Nela were born in the zoo of Munich on December 9, 2013. AFP PHOTO/CHRISTOF STACHE (Photo credit should read CHRISTOF STACHE/AFP/Getty Images) (credit:CHRISTOF STACHE via Getty Images)
RUSSIA-ANIMALS-POLAR BEAR-CUB(12 of22)
Open Image ModalPolar bear Uslada walks with its five-month-old cub in their enclosure at the St. Petersburg Zoo, on April 24, 2014, during the cub\'s first public appearance. AFP PHOTO / OLGA MALTSEVA (Photo credit should read OLGA MALTSEVA/AFP/Getty Images) (credit:OLGA MALTSEVA via Getty Images)
Summer Heat Continues in Japan(13 of22)
Open Image ModalHIMEJI, JAPAN - JULY 23: Yuki, a 15 year old polar bear, cools down by playing with 135 kilograms weight ice block at Himeji Zoo on July 23, 2014 in Himeji, Japan. Heat wave continues in many parts of Japan as temperature rising to 33 degrees Celsius today. Ministry of Health of Japan reported that the number of death from heat stroke in the past decade until 2013 amounted to 7344, 2.7 times of the previous decade. (Photo by Buddhika Weerasinghe/Getty Images) (credit:Buddhika Weerasinghe via Getty Images)
Summer Heat Continues in Japan(14 of22)
Open Image ModalHIMEJI, JAPAN - JULY 23: Yuki, a 15 year old polar bear, cools down by playing with 135 kilograms weight ice block on July 23, 2014 in Himeji, Japan. Heat wave continues in many parts of Japan as temperature rising to 33 degrees Celsius today. Ministry of Health of Japan reported that the number of death from heat stroke in the past decade until 2013 amounted to 7344, 2.7 times of the previous decade. (Photo by Buddhika Weerasinghe/Getty Images) (credit:Buddhika Weerasinghe via Getty Images)
Summer Heat Continues in Japan(15 of22)
Open Image ModalHIMEJI, JAPAN - JULY 23: Hokuto, a 14 year old polar bear, cools down by playing with 135 kilograms weight ice block on July 23, 2014 in Himeji, Japan. Heat wave continues in many parts of Japan as temperature rising to 33 degrees Celsius today. Ministry of Health of Japan reported that the number of death from heat stroke in the past decade until 2013 amounted to 7344, 2.7 times of the previous decade. (Photo by Buddhika Weerasinghe/Getty Images) (credit:Buddhika Weerasinghe via Getty Images)
Summer Heat Continues in Japan(16 of22)
Open Image ModalHIMEJI, JAPAN - JULY 23: Yuki, a 15 year old polar bear, cools down by eating 135 kilograms weight ice block on July 23, 2014 in Himeji, Japan. Heat wave continues in many parts of Japan as temperature rising to 33 degrees Celsius today. Ministry of Health of Japan reported that the number of death from heat stroke in the past decade until 2013 amounted to 7344, 2.7 times of the previous decade. (Photo by Buddhika Weerasinghe/Getty Images) (credit:Buddhika Weerasinghe via Getty Images)
GERMANY-ANIMALS-POLAR BEAR(17 of22)
Open Image ModalOne of the half-a-year old polar bear twins explores the new outside pool enclosure at the Hellabrunn zoo in Munich, southern Germany, on June 26, 2014. The two little polar bear cubs Nobby and Nela were born in the zoo of Munich on December 9, 2013. AFP PHOTO/CHRISTOF STACHE (Photo credit should read CHRISTOF STACHE/AFP/Getty Images) (credit:CHRISTOF STACHE via Getty Images)
GERMANY-ANIMALS-POLAR BEAR(18 of22)
Open Image ModalPolar bear Giovanna and one of her half-a-year old polar bear twins explore their new outside pool enclosure at the Hellabrunn zoo in Munich, southern Germany, on June 26, 2014. The two little polar bear cubs Nobby and Nela were born in the zoo of Munich on December 9, 2013. AFP PHOTO/CHRISTOF STACHE (Photo credit should read CHRISTOF STACHE/AFP/Getty Images) (credit:CHRISTOF STACHE via Getty Images)
FRANCE-ZOO-BEAR(19 of22)
Open Image ModalA polar bear tries to catch a fish during the opening day of the new polar area at the zoo of Mulhouse on April 2, 2014. AFP PHOTO / SEBASTIEN BOZON (Photo credit should read SEBASTIEN BOZON/AFP/Getty Images) (credit:SEBASTIEN BOZON via Getty Images)
FRANCE-ZOO-BEAR(20 of22)
Open Image ModalA child looks at a polar bear during the opening day of the new polar area at the zoo of Mulhouse on April 2, 2014. AFP PHOTO / SEBASTIEN BOZON (Photo credit should read SEBASTIEN BOZON/AFP/Getty Images) (credit:SEBASTIEN BOZON via Getty Images)
FRANCE-ZOO-BEAR(21 of22)
Open Image ModalPeople look at a polar bear during the opening day of the new polar area at the zoo of Mulhouse on April 2, 2014. AFP PHOTO / SEBASTIEN BOZON (Photo credit should read SEBASTIEN BOZON/AFP/Getty Images) (credit:SEBASTIEN BOZON via Getty Images)
GERMANY-ANIMALS-ZOO-POLAR BEAR(22 of22)
Open Image ModalPolar bear twins Nobby and Nela sleep in their enclosure of the Tierpark Hellabrunn zoo in Munich, southern Germany, on August 22, 2014. The two cubs were born at the zoo on December 9, 2013. AFP PHOTO / DPA / STEPHAN JANSEN / GERMANY OUT (Photo credit should read STEPHAN JANSEN/AFP/Getty Images) (credit:STEPHAN JANSEN via Getty Images)