Liang Liang, formerly known as Feng Yi, one of two giant pandas from China, sleeps at the Giant Panda Conservation Center at the National Zoo in Kuala Lumpur, Malaysia, Saturday, June 28, 2014. Two pandas arrived in Malaysia on May 21 to mark the 40th anniversary of the establishment of diplomatic ties between Malaysia and China. The pair will live in the country for the next 10 years. (Photo by Lai Seng Sin/AP Photo)

Hugo, a 63-year-old Galapagos Tortoise, is enticed out of his enclosure with a carrot fed to him by a keeper before his annual weighing at the Australian Reptile Park in Somersby near Sydney, July 1, 2014. Once a year Hugo's massive body is carried by four men and a forklift to an industrial scale to assess his health and at 166 kilograms (366 lbs), he weighs one kilogram more than last year. The life expectancy of a Galapagos Tortoise is up to 180 years. (Photo by Jason Reed/Reuters)

Animal keeper Lisa Voss feeds Dyna the walrus as she and her calf are presented to the public in Hamburg July 2, 2014. The newborn nameless calf was born June 15 in Hagenbeck Zoo, in the northern German city of Hamburg. It is the first and only walrus ever born in Germany. (Photo by Morris Mac Matzen/Reuters)

A newborn walrus calf looks out from its compound as it is presented to the public in Hamburg July 2, 2014. The newborn nameless calf was born June 15 in the Hagenbeck Zoo in the northern German city of Hamburg. It is the first and only walrus ever born in Germany. (Photo by Morris Mac Matzen/Reuters)

Tuf Cooper of Decatur, Texas, flips a calf in the tie-down roping event during day 1 of the rodeo at the 102 Calgary Stampede in Calgary, Alberta, July 4, 2014. (Photo by Todd Korol/Reuters)

A firefighter holds a red panda (Ailurus fulgens) from its tail while removing it from a tree at a residential area in Kunming, Yunnan province, July 3, 2014. The animal was spotted in the residential area and was brought down from the tree after residents reported its sighting to the police, local media reported. (Photo by Reuters/Stringer)

A firefighter holds a red panda (Ailurus fulgens) from its tail while removing it from a tree at a residential area in Kunming, Yunnan province, July 3, 2014. (Photo by Reuters/Stringer)

Central Park Zoo welcomes four banded baby mongoose aged two weeks in New York City. Banded mongooses (scientific name Mungos mungo) are a common sight throughout sub-Saharan Africa. They are about the size of a small cat and live in extended family groups of around twenty adults plus their offspring. Each group or family sleeps together each night in a communal underground den, changing between den sites every 3-5 days. (Photo by Dan Callister/PacificCoastNews)

Thai hedgehog “Little” eat fruits and vegetables in front of Brazil after a choice between two bowls of goodies, each representing one of Brazil and Chile nations, during predicting World Cup results at the zoo in Chiang Mai, northern Thailand, 26 June 2014. The organizers of a zoo in Thailand are using hedgehogs to predict World Cup results between Brazil and Chile ahead of their match on 28 June. The Chiang Mai Night Safari is hoping to emulate the success of Paul the Octopus and his predictions during the 2010 Cup, by employing hedgehogs to pick this year's matches, Thai local media report. The FIFA World Cup 2014 is taking place in Brazil until 13 July 2014. (Photo by Pongmanat Tasiri/EPA)

A two-weeks old brown fur seal female (Arctocephalus pusillus) in its enclosure in Wroclaw Zoo in Wroclaw, Poland, 26 June 2014. A young seal female will stay in an enclosure over the next two months, while its fur will change to get waterproof. The seal pup will also make first swimming attempts. (Photo by Maciej Kulczynski/EPA)

Snake expert Mohd. Saleem carries rat snakes to keep in his collection centre, after being recovered from various spots and houses in Bhopal, India, 03 July 2014. Due to high humidity and hostile weather conditions in hot summer, snake occurence and their number gets higher in India. (Photo by Sanjeev Gupta/EPA)

Young giraffe Madiba is cared for by its mother Andrea in their enclosure in the zoo Leipzig, eastern Germany, on July 1, 2014. Madiba was born on June 12, 2014. (Photo by Hendrik Schmidt/AFP Photo/DPA)

A female cheetah watches over her cubs in Burgers Zoo in Arnhem, The Netherlands, on July 4, 2014. The rare cheetah sextuplets where born on 24 May, but are now seen for the first time by the public. Normally a cheetah gives birth to two to four young. (Photo by Piroschka van de Wouw/AFP Photo)

A little boy looks at a polar bear as it swims in its enclosure's pool at Ueno Zoo in Tokyo, Japan, July 2, 2014. Highest temperatures in the Japanese capital rose over 30 degrees Celsius, three degrees more than average for this time of year. (Photo by Kimimasa Mayama/EPA)

Sheep painted in the colors of the Tour de France winners jerseys in fields near Harrogate where the race will pass over the weekend. Farmer Keith Chapman a keen cycling enthusiast painted his flock in the Yellow Race leaders jersey, Polka dot of the Mountains Competition leader and Green jerseys for the Points leader to greet the riders when they race past. (Photo by John Giles/PA Wire)

Darren DeBloois stands over a moose after he tranquilized it after it was found in a Logan, Utah neighborhood on Monday, June 30, 2014. (Photo by Eli Lucero/AP Photo/The Herald Journal)

Dublin Zoo is delighted to announce the birth of two meerkat pups, 3rd July 2014. The female pups join the mob of 16 meerkats in their habitat which is located in the Meerkat Restaurant at Dublin Zoo. (Photo by Patrick Bolger/PA Ware)

Dr Amin Shirzad poses for photographs with his scorpions considered as his pets at his home in Mazar-e-Sharif, Afghanistan, 03 July 2014. Shirzad raises more than 400 scorpions at his place. After extracting the venom, he uses it in medicine for diseases such as vitiligo and epilepsy. (Photo by Sayed Mustafa/EPA)

A photographer takes pictures of Lhasa Apso dogs in a basket, during a Dog and Cat Expo in Manila June 29, 2014. (Photo by Romeo Ranoco/Reuters)

Liv, a seven-month-old wallaby, looks out of her pouch which hangs around zookeeper Taylor Daniels' neck, in a kitchen at the Lincoln Children's Zoo on Tuesday, June 24, 2014. She's too young to join the zoo's wallaby population, so zookeepers are taking care of her, carrying her in a custom-made pouch. (Photo by Gwyneth Roberts/AP Photo/The Journal-Star)

An African painted dog leaps over water in the new Painted Dog Valley exhibit just opened to the public, Monday, June 30, 2014, at the Cincinnati Zoo in Cincinnati. There are only about 3,000 dogs in Tanzania, Kenya, Zimbabwe, Botswana, and South Africa combined, making them one of the rarest species in Africa. (Photo by Al Behrman/AP Photo)

This picture taken on June 28, 2014 shows a butterfly on a tourist's face in the “butterfly valley” in Shenyang, northeast China's Liaoning province. The butterfly valley, with a collection of some 400 butterflies from more than 20 species, opened to the public on June 28, local media reported. (Photo by AFP Photo/Stringer)

This June 17, 2014 photo provided by the San Antonio Zoo shows a pair of warthog piglets born Saturday, June 14, 2014 with their mom, “Sekini”. Zoo officials on Thursday, June 26, 2014, announced the birth of the male and female piglets. (Photo by AP Photo/San Antonio Zoo)

Wyatt Smith of Rexburg, Idaho, slides in the dirt as he pulls down a steer for a time of 4.3 seconds during the steer wrestling competition at Greeley Stampede Arena on Tuesday, July 1, 2014, in Greeley, Colo. (Photo by Jim Rydbom/AP Photo/Greeley Tribune)