Wong Maye-E/AP
Three 2-month-old Oriental Pied Hornbills are displayed at the Jurong Bird Park's Breeding and Research Center in Singapore, March 8, 2013.
India
Bikas Das/AP
Bulls participate in a race at a paddy field during a festival in Monsatola, India, July 13, 2013.
England
Nigel Roddis/Reuters
Grey seals play underwater by the Farne Islands off the Northumberland coast, northern England, Nov. 17, 2013.
Germany
Bodo Marks/AP/DPA
Kamchatka brown bears Leonid, left, and Mascha stand in the pool of their enclosure in the Hagenbeck Zoo in Hamburg, Germany, July 24, 2013.
Madagascar
Thomas Mukoya/Reuters
Roosters participate in a traditional Malagasy cockfighting contest in Ambohimangakely, near Madagascar's capital Antananarivo, Oct. 27, 2013.
California
Mike Blake/Reuters
Pelicans silhouetted by a setting sun fly as they look for fish along the California coastline near Leucadia, Calif., Nov. 1, 2013.
Spain
Blazquez Dominguez/Getty Images
A horse looks out from inside a barn at the Zahariche ranch near Lora del Rio, Spain, June 26, 2013.
Germany
Axel Heimken/AP
Three-month-old beaver "Momo" swims in the pool of the wild animal facility in Klein Offenseth-Sparrieshoop, Germany, July 10, 2013.
Illinois
Scott Olson/Getty Images
A calf, born June 21, roams with adult giraffes at the Brookfield Zoo in Brookfield, Ill., July 2, 2013.
Germany
Michaela Rehle/Reuters
An alpaca stands in the meadow in the village of Winklarn near Regensburg, Germany, April 22, 2013.
Illinois
Todd Rosenberg/Lincoln Park Zoo/AP
A baby gorilla born in November, is seen at the Lincoln Park Zoo's Regenstein Center for African Apes, Aug. 21, 2013.
Italy
Andrew Medichini/AP
Brown bear Sandro holds a frozen watermelon to refresh himself in Rome's Bioparco zoo, July, 23, 2013.
China
China Daily/Reuters
Giant panda cubs lie in a crib at the Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, Sept. 23, 2013.
Canada
Maggie Okituk/Reuters
Three killer whales surface through a breathing hole in the ice of Hudson Bay near the community of Inukjuak, Quebec, Jan. 9, 2013.
Spain
Jon Nazca/Reuters
A white bull is seen at sunset in a "dehesa" (wooded pastureland) at Reservatauro Ronda cattle ranch in Ronda, near Malaga, Feb. 12, 2013.
Singapore
Wong Maye-E/AP
A one-month-old endangered Bornean orangutan sleeps on his mother in Singapore, March 6, 2013.
Brazil
Ueslei Marcelino/Reuters
Cows walk on a stretch of Brazil's uncompleted North-South Railroad in Anapolis City, Sept. 26, 2013.
Sri Lanka
Dinuka Liyanawatte/Reuters
A chameleon is seen on a tree near the Sri Dalada Maligawa (Temple of the Tooth) in Kandy, Nov. 20, 2013.
South Korea
Ahn Young-joon/AP
A diver performs with sardines as part of summer vacation events at the Coex Aquarium in Seoul, South Korea, July 31, 2013.
Israel
Jack Guez/AFP/Getty Images
A few-hour-old baby Asian elephant stands near its mother "La Petite" at the Ramat Gan Safari, a.k.a. the Zoological Center of Tel Aviv-Ramat Gan, Oct. 3, 2013.
Spain
Miguel Vidal/Reuters
Wild horses fight during the "Rapa Das Bestas" event in Mougas, northwestern Spain, June 9, 2013.
New York
Adam Hunger/Reuters
A praying mantis lands on the center court as Rafael Nadal of Spain plays against Tommy Robredo during the men's quarter-final match at the U.S. Open tennis championships in New York, Sept. 4, 2013.
Germany
Ina Fassbender/Reuters
A flamingo is pictured in its enclosure at the zoo in Wuppertal, Germany, Jan. 4, 2013.
Scotland
David Moir/Reuters
Huskies pant during a training session at Feshiebridge, in Aviemore, Scotland, Jan. 23, 2013.
England
Nigel Roddis/Reuters
A puffin is seen with sand eels in its beak on the Farne Islands off the Northumberland coast, northern England, July 8, 2013.
Germany
Sean Gallup/Getty Images
An adult female European lobster lies on the floor next to a one-year-old lobster of the same species at the Helgoland Biological Institute at Helgoland Island, Germany, Aug. 3, 2013.
Israel
Uriel Sinai/Getty Images
Ibexes walk in the desert near Sde Boker in the Negev Desert, Israel, Aug. 6, 2013.
Russia
Ilya Naymushin/Reuters
Zebras, female Zizi (front) and male Moryachok, run on the snow in an open-air enclosure at the Royev Ruchey zoo on the suburbs of Krasnoyarsk, Russia, Feb. 21, 2013.
Spain
Marcelo del Pozo/Reuters
A Spanish four-year-old thoroughbred, Nevisco III, shakes its head during the Sicab International Pre Horse Fair in the Andalusian capital of Seville, Dec. 5, 2013.
Ecuador
Guillermo Granja/Reuters
An Imbabura tree frog is pictured at the Jambatu Center for Research and Conservation of Amphibians in Quito, Oct. 15, 2013.
Illinois
Scott Olson/Getty Images
Koola, an 18-year-old western lowland gorilla, holds her newborn infant in her enclosure at the Brookfield Zoo, in Brookfield, Ill., Nov. 6, 2013.
Russia
Ilya Naymushin/Reuters
Masha, a female raccoon, yawns in her wooden refuge inside an open-air cage where she hibernates at the Royev Ruchey zoo in Krasnoyarsk, Nov. 20, 2013.
Ecuador
Jorge Silva/Reuters
A Zayapa red crab perches on a rock at Punta Albemarle in Isabela island at Galapagos National Park, Aug. 22, 2013.
Pennsylvania
Matt Rourke/AP
A white-handed gibbon clings to his mother at the Philadelphia Zoo, Nov. 21, 2013.
England
Toby Melville/Reuters
Two deer clash antlers during an early autumn misty morning in Richmond Park, London, Sept. 27, 2013.
United Arab Emirates
Ahmed Jadallah/Reuters
A Red-necked Ostrich is seen at Al Bustan Zoological Centre in Maliha village, United Arab Emirates, May 21, 2013.
England
Nigel Roddis/Reuters
Arctic terns fly above the Farne Islands off the Northumberland coast, northern England, July 8, 2013.
Russia
Ilya Naymushin/Reuters
Anfisa, an 8-year-old female chimpanzee, washes a window in her enclosure where she lives with a male chimpanzee named Tikhon, at the Royev Ruchey zoo in Krasnoyarsk, Siberia, Jan. 29, 2013.
