African lioness named Rani, or Queen, sits with her newly born five cubs at the house of her owner who has grown her as a pet, Thursday, March 26, 2015, in Multan, Pakistan. The African lioness has given birth to five healthy cubs. Lions normally have litters of two or three cubs. (Photo by Asim Tanveer/AP Photo)

A newborn giraffe baby stands next to its mother Sandra in the Savannah House of the Budapest Zoo in Budapest, Hungary, Wednesday, March 25, 2015. The s*x of the calf could not have been determined yet. (Photo by Attila Kovacs/AP Photo/MTI)

Jalada Prasad, about six-month-old male Indian one-horned rhino runs around his enclosure on his debut to the public at Alipore Zoological Garden in Kolkata, India, Friday, March 27, 2015. The forest guards rescued Prasad when poachers at Jaldapara forest in north Bengal killed his mother in November 2014. He was brought to the zoo in January 2015 and was kept under strict vigil and nourishment, according to a zoo spokesperson. (Photo by Bikas Das/AP Photo)

Felix, a 9-year-old male polar bear, shakes off water after swimming in a pool for the first time after winter at the Royev Ruchey zoo in a suburb of Russia's Siberian city of Krasnoyarsk March 22, 2015. Felix was delivered to the zoo as a weak, orphaned cub from a scientific polar station on the Wrangel Island in the Arctic Ocean in May 2006, according to zoo representatives. (Photo by Ilya Naymushin/Reuters)

Felix, a 9-year-old male polar bear, swims in a pool for the first time after winter at the Royev Ruchey zoo in a suburb of Russia's Siberian city of Krasnoyarsk March 22, 2015. (Photo by Ilya Naymushin/Reuters)

Buyan, a 15-year-old male Siberian brown bear, walks in its enclosure as he wakes up after winter hibernation at the Royev Ruchey zoo in a suburb of Russia's Siberian city of Krasnoyarsk March 22, 2015. (Photo by Ilya Naymushin/Reuters)

Buyan, a 15-year-old male Siberian brown bear, walks in its enclosure as he wakes up after winter hibernation at the Royev Ruchey zoo in a suburb of Russia's Siberian city of Krasnoyarsk March 22, 2015. (Photo by Ilya Naymushin/Reuters)

Buyan, a 15-year-old male Siberian brown bear, walks in its enclosure as he wakes up after winter hibernation at the Royev Ruchey zoo in a suburb of Russia's Siberian city of Krasnoyarsk March 22, 2015. (Photo by Ilya Naymushin/Reuters)

A wildlife department official holds a Malayan sun bear for the media at its head office in Kuala Lumpur, March 24, 2015. It was among other animals estimated to be worth $20,000, including juvenile eagles and a slow loris, seized by the wildlife department during an operation against illegal wildlife traders earlier this month. The illegal wildlife trade is estimated to be $8 billion a year worldwide, according to TRAFFIC, a wildlife trade monitoring network. (Photo by Olivia Harris/Reuters)

A slow loris is carried in a cage by a wildlife department official at the head office in Kuala Lumpur March 24, 2015. (Photo by Olivia Harris/Reuters)

An elephant family plays at the safari park in Guangzhou, Guangdong province, March 24, 2015. (Photo by Alex Lee/Reuters)

Lolita the Killer Whale is fed a fish by a trainer during a show at the Miami Seaquarium in Miami in this file photo from January 21, 2015. Animal activists seeking to free Lolita, a killer whale living in captivity for more than four decades, asked a federal appeals court in Florida March 24, 2015 to reconsider whether U.S. officials “rubber stamped” an aquarium's license to keep her. (Photo by Andrew Innerarity/Reuters)

Lolita the Killer Whale is fed a fish by a trainer during a show at the Miami Seaquarium in Miami in this file photo from January 21, 2015. (Photo by Andrew Innerarity/Reuters)

Paris zoo veterinarian Bastien Servieres works with a sea lion to acclimate it to his presence during a training session at the Paris Zoological Park in the Bois de Vincennes in the east of Paris March 26, 2015. A “behind-the-scenes” visit, with medical training and feeding of the animals, will be part of special presentations to the public as part of a month of celebration to commemorate the first anniversary of the re-opening of the park in April. (Photo by Philippe Wojazer/Reuters)

Paris zoo veterinarian Bastien Servieres works with a sea lion to acclimate it to his presence during a training session at the Paris Zoological Park in the Bois de Vincennes in the east of Paris March 26, 2015. (Photo by Philippe Wojazer/Reuters)

A zoo veterinarian feeds giraffes at the Paris Zoological Park in the Bois de Vincennes in the east of Paris March 26, 2015. (Photo by Philippe Wojazer/Reuters)

Paris zoo veterinarian Bastien Servieres works with a sea lion to acclimate it to his presence during a training session at the Paris Zoological Park in the Bois de Vincennes in the east of Paris March 26, 2015. (Photo by Philippe Wojazer/Reuters)

Paris zoo veterinarian Bastien Servieres works with a sea lion to acclimate it to his presence during a training session at the Paris Zoological Park in the Bois de Vincennes in the east of Paris March 26, 2015. (Photo by Philippe Wojazer/Reuters)

A rescue worker measures a recovered finless porpoise before releasing it back to the wild, in Poyang Lake, Jiangxi province, March 26, 2015. Oceanography and fishery experts said the finless porpoise has been endangered due to pollution and water shortage, local media reported. (Photo by Reuters/Stringer)

Brown bear Oska (R) and Roni (L) play in a bear sanctuary near the village of Mramor, Kosovo, 18 March 2015. The Bear Sanctuary Pristina has currently 16 brown bears in custody rescued from the private restaurants around Kosovo. All privately kept brown bears lived in small cages at restaurants. They were born mostly in the forests of Kosovo or Albania and snatched from their mothers by animal dealers. (Photo by Valdrin Xhemaj/EPA)

A picture made available on 24 March 2015 shows a stork standing in a nest in Straubing (Bavaria), Germany, 23 March 2015. (Photo by Armin Weigel/EPA)

Beluga whales training at an open aviary, at the marine mammal scientific research base of the Primorye Oceanarium of the Far Eastern Division of the Russian Academy of Sciences (RAS) in Vladivostok, Russia on February 17, 2015. (Photo by Yuri Smityuk/TASS/ZUMA Wire)

Ring Tailed Lemurs explore the new “In With The Lemurs” walk-through enclosure at The ZSL London Zoo, London, England, UK on Thursday 26th March, 2015. (Photo by Justin Ng/Retna Pictures/UPPA/ZUMA Wire)

Storks are seen in Biebesheim, central Germany on March 9, 2015 as the sun shines. (Photo by Boris Roessler/AFP Photo/DPA)

Recovering sea lion pups are fed herring in an enclosure at the Marine Mammal Center on March 18, 2015 in Sausalito, California. For the third winter in a row, hundreds of sick and starving California sea lions are washing up on California shores, with over 1,800 found and treated at rehabilitation centers throughout the state since the beginning of the year. The Marine Mammal Center is currently caring for 224 of the emaciated pups. (Photo by Justin Sullivan/Getty Images)

A vet from Chester Zoo catches one of the three as yet unnamed 12 week old Sumartran Tiger Cubs born earlier this year, to identify what s*x they are and to vaccinate them, Friday March 27, 2015. The cubs, born in January to mum Kirana and dad Fabi, were found to be two males and one female. (Photo by Peter Byrne/AP Photo/PA Wire)

A vet from Chester Zoo catches one of the three as yet unnamed 12 week old Sumartran Tiger Cubs born earlier this year, to identify what s*x they are and to vaccinate them, Friday March 27, 2015. (Photo by Peter Byrne/AP Photo/PA Wire)

A vet from Chester Zoo catches one of the male as yet unnamed 12 week old Sumatran Tiger Cubs born earlier this year to identify what s*x he and to vaccinate him on March 27, 2015. The three cubs, born in January to mum Kirana and dad Fabi, were found to be two males and one female. (Photo by Peter Byrne/PA Wire)

A keeper holds a 12 week old Sumatran tiger cub during a routine health check in its enclosure at Chester Zoo in Chester northern England March 27, 2015. The cub, one of 3 born at the zoo, was sexed, vaccinated and micro-chipped. (Photo by Phil Noble/Reuters)

A fox squirrel munches on a discarded glazed donut Wednesday, March 25, 2015, at Mill Race Park in Columbus, Ind. (Photo by Andrew Laker/AP Photo/The Republic)

Bateleur “Attila” sits in its enclosure in the bird park Marlow, eastern Germany, on March 21, 2015. The Global population of this animal is estimated at 10,000 to 100,000 individuals. (Photo by Bernd Wustneck/AFP Photo/DPA)

A yet unnamed polar bear cub is out and about with its mother “Vilma” for the first time in their enclosure at the zoo in Rostock, Germany, 25 March 2015. The 3.5 months old polar bear cub weights just about 20 kg and is to be baptized on 31 March 2015. (Photo by Bernd Wuestneck/EPA)

The male polar bear cub plays with its mother Vilma in their outdoor enclosure at the zoo in Rostock, Germany, Wednesday, March 25, 2015. The three and a half month old polar bear cub will get a name on March 31. (Photo by Bernd Wuestneck/AP Photo/DPA)

A picture made available on 25 March 2015 shows a cat yawning on a kitchen table at an apartment in Hamburg, Germany, 24 March 2015. Spring fever occurs mostly in spring time as the days get warmer. (Photo by Axel Heimken/EPA)

Lion cubs cuddle in the Gyongyos Zoo in Gyongyos, Hungary, 21 March 2015. The one male and two female cubs were born on 12 March 2015. (Photo by Peter Komka/EPA)

In this March 24, 2015, photo, California sea lions and harbor seals rest on the docks of the East End Mooring Basin in Astoria, Ore. During a Feb. 11 aerial survey, the Washington Department of Fish and Wildlife counted more than 1,200 California sea lions at the East End Mooring Basin, along with nearly 600 Steller and California sea lions on the South Jetty. On Friday March 20, spokeswoman Jessica Sall of the Oregon Department of Fish and Wildlife said, her agency counted 2,340 California sea lions at the East End Mooring Basin. (Photo by Joshua Bessex/AP Photo/Daily Astorian)

The fluffy yellow chick and its pug pal can be seen cuddling up to one another, snoozing next to each other and posing for the camera on March 23, 2015. The cute chick can even be seen planting a peck on the pups cheek. The pug named Fugly and chick called KFC, were introduced by their owners who live next door to one another in the Philippines. Fuglys owner Tim Ho, who captured these adorable images, explained how he and his neighbour both bought the animals as pets around the same time and introduced them to each other to see how theyd react.To their surprise KFC and Fugly almost immediately bonded. He said the fact that the pug, now 15 months old, wasnt yet territorial over his new home helped make it easier for them to develop their blossoming friendship. (Photo by Tim Ho/Caters News)

An adorable clouded leopard cub has become an Internet sensation for being so sensationally cute. The 2-week old kitten, who squeaks at meal times, is yet to be named and is currently being cared for 24/7 by staff at the Tampa Lowry Park Zoo in Florida. “He is very vocal, particularly near feeding time which occurs approximately every four hours”, the zoo's rep said in a statement. The rare and fluffy cub's father is called Yim and his mother is named Malee. The cub was born on March 7, 2015 and opened his eyes for the first time on on March 18. He is now beginning to learn to scoot along by himself. (Photo by TLPZ/Splash News and Pictures)

Going toe-to-toe, these fighting primates could give Floyd Mayweather a run for his money. The amazing images – captured by Australian tourist Julie Rathbone on the banks of the Zambezi river in Africa – show the pair engaging in a few fisticuffs. The Chacma baboons appeared to settle a disagreement by fighting – before a senior baboon plays referee and steps in to break it up. Nurse unit manager Julie Rathbone, 59, from New South Wales, was on a cruise down the river when she spotted the fracas unfolding. (Photo by Julie Rathbone/Caters News)

Two wood bison bulls weighing upward of 2,000 pounds move toward higher ground at the Alaska Wildlife Conservation Center on Sunday, March 22, 2015, in Portage, Alaska. The Alaska Department of Fish and Game on Sunday moved the first wood bison to a staging area in Shageluk, Alaska, for reintroduction in a few week to their native Alaska grazing grounds. Wood bison, which are larger than plains bison native found in Lower 48 states, disappeared from U.S. soil more than a century ago. (Photo by Dan Joling/AP Photo)