(01 of19)
Open Image ModalIn this Monday, Aug. 27, 2012 photo, Mauyak, a beluga whale at Chicago's Shedd Aquarium, swims with her newly born calf at the aquarium's Abbott Oceanarium. Shedd (credit:AP)
(02 of19)
Open Image ModalTAUNTON, ENGLAND - AUGUST 28: Rescued young tawny owls perch on a branch as they wait to be released back into the wild at the RSPCA West Hatch Wildlife Centre on August 28, 2012 in Taunton, England. Between January and the end of July, 33 of the baby birds were taken to the RSPCA centre in Somerset for care, a large increase on previous years. Although the exact reason for this rise is unclear, it is thought the topsy-turvy weather conditions and some extremely windy days through the spring and summer may have contributed. (Photo by Matt Cardy/Getty Images) (credit:Getty)
(03 of19)
Open Image ModalYoung leopards from Sri Lanka, born in the bioparc of Doue-la-Fontaine, play with their mother Iris on September 2, 2012. The Sri Lanka leopard is the largest feline in the island country that shares its name. Rare in captivity, it is threatened by the destruction of its habitat. Three young panthera live in the Zoo of Doue-La-Fontaine, Ciuttai, Cingha and Lanka are the children of Iris (6 years) and Bonhomme (12 years). AFP PHOTO FRANK PERRY (credit:Getty)
(04 of19)
Open Image ModalWASHINGTON - AUGUST 29: Two North American beavers check out a man-made beaver dam in the new beaver enclosure during a sneak peak of the new American Trail at the Smithsonian National Zoo August 29, 2012 in Washington, D.C. There are three beavers in the enclosure, Chipper, Buzz and Willow, all born in June of 2000. The trail, featuring animals and horticulture native to the Americas, opens to the public on September 1. (Photo by Allison Shelley/Getty Images) (credit:Getty)
(05 of19)
Open Image ModalIn this Monday, Aug. 27, 2012 photo, Mauyak, a beluga whale at Chicago's Shedd Aquarium, swims with her newly born calf at the aquarium's Abbott Oceanarium. Shedd (credit:AP)
(06 of19)
Open Image ModalA five-month leopard from Sri Lanka, born in the bioparc of Doue-la-Fontaine, is pictured next to his mother Iris on September 2, 2012. The Sri Lanka leopard is the largest feline in the island country that shares its name. Rare in captivity, it is threatened by the destruction of its habitat. Three young panthera live in the Zoo of Doue-La-Fontaine, Ciuttai, Cingha and Lanka are the children of Iris (6 years) and Bonhomme (12 years). AFP PHOTO FRANK PERRY (credit:Getty)
(07 of19)
Open Image ModalBonhomme, a male leopard, yawns, on September 2, 2012 in the bioparc of Doue-la-Fontaine. The Sri Lanka leopard is the largest feline in the island country that shares its name. Rare in captivity, it is threatened by the destruction of its habitat. Three young panthera live in the Zoo of Doue-La-Fontaine, Ciuttai, Cingha and Lanka are the children of Iris (6 years) and Bonhomme (12 years). AFP PHOTO FRANK PERRY (credit:Getty)
(08 of19)
Open Image ModalA picture taken on August 30, 2012 shows a 'Dorcus Parallelipedus' stag beetle ('Petite biche' or 'Coleoptere Lucanidae' in French), in Saint Philbert sur Risle, northwestern France. AFP PHOTO/JOEL SAGET (credit:Getty)
(09 of19)
Open Image ModalNEW ORLEANS, LA - AUGUST 28: Ruffin Henry and Scout the dog swim in the rising water of Lake Pontchartrain as Hurricane Isaac approaches on August 28, 2012 in New Orleans, Louisiana. Hurricane Isaac is expected to make landfall later today along the Lousiana coast. (Photo by Chris Graythen/Getty Images) (credit:Getty)
UKRAINE-ANIMALS-LIONS-PARK(10 of19)
Open Image ModalA female lion yawns past the casted shadows of visitors of Taygan park, the park of lions, some 50 km from Crimean city of Simferopol, Ukraine, on August 29, 2012. The Taygan park, newly opened in 2012, is the largest lion park of Europe with more than 50 lions coming colllected from differents zoo collections of Europe and South Africa. AFP PHOTO/ SERGEI SUPINSKY (Photo credit should read SERGEI SUPINSKY/AFP/GettyImages) (credit:Getty)
(11 of19)
Open Image ModalWASHINGTON - AUGUST 29: Crystal, a female gray wolf, roams the new wold enclosure during a sneak peak of the new American Trail at the Smithsonian National Zoo August 29, 2012 in Washington, D.C. The trail, featuring animals and horticulture native to the Americas, opens to the public on September 1. (Photo by Allison Shelley/Getty Images) (credit:Getty)
(12 of19)
Open Image ModalA Black Crowned Crane (Balearica pavonina) watches the photographer in his enclosure in the zoo in Dresden, eastern Germany Thursday Aug. 30, 2012. (AP Photo/dapd/Joern Haufe) (credit:AP)
(13 of19)
Open Image ModalTwo circus lions rest in their cage on zoo grounds, in Asuncion, Paraguay,Tuesday, Aug. 28, 2012. The lions are two of the seven African lions and nine Bengal tigers from an Argentine circus that were stuck in a Paraguayan border town for two months and recently moved to a shaded area at the Asuncion Zoo where Paraguay's wildlife agency hopes they will be more comfortable as circus owners and Argentine officials work out the circus animals' paperwork for re-entry. (AP Photo/Jorge Saenz) (credit:AP)
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Open Image ModalA shoebill is displayed at Ueno Zoo in Tokyo, Tuesday, Aug. 28, 2012. (AP Photo/Itsuo Inouye) (credit:AP)
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Open Image ModalA baby greater flamingo stands next to the adult birds at Ueno Zoo in Tokyo, Tuesday, Aug. 28, 2012.(AP Photo/Itsuo Inouye) (credit:AP)
(16 of19)
Open Image ModalA dog wears a colorful neckless as he passes by the Lido casino during the 69th Venice Film Festival on September 1, 2012 at Venice Lido. 'Cherchez Hortense' is presented out of competition. AFP PHOTO / GABRIEL BOUYS (credit:Getty)
(17 of19)
Open Image ModalA bird perches on a tree branch in Sydney's Royal Botanical Gardens on September 1, 2012, as the Australian city ushers in the first day of spring. A recent report shows Sydney's ranking has consistently placed in the top 10 liveable cities in the world, scoring well for having low pollution levels and abundant green spaces. AFP PHOTO / ROMEO GACAD (credit:Getty)
(18 of19)
Open Image ModalWASHINGTON - AUGUST 29: A sea lion swims by a viewing area during a sneak peak of the new American Trail at the Smithsonian National Zoo August 29, 2012 in Washington, D.C. The 300,000 gallon sea lion pool, designed in the style of a rocky California beach, is complete with a wave machine and is the new home to four female California sea lions: Summer, Sidney, Calli and Sophie. The trail, featuring animals and horticulture native to the Americas, opens to the public on September 1. (Photo by Allison Shelley/Getty Images) (credit:Getty)
(19 of19)
Open Image ModalA circus tiger looks out from a cage parked on zoo grounds, in Asuncion, Paraguay,Tuesday, Aug. 28, 2012. The tiger is one of nine Bengal tigers and seven African lions from an Argentine circus that were stuck in a Paraguayan border town for two months and recently moved to a shaded area at the Asuncion Zoo where Paraguay's wildlife agency hopes they will be more comfortable as circus owners and Argentine officials work out the circus animals' paperwork for re-entry. (AP Photo/Jorge Saenz) (credit:AP)