Lolita the Killer Whale is fed a fish by a trainer during a show at the Miami Seaquarium in Miami January 21, 2015. In the coming days the National Oceanic and Atmospheric Administration will decide whether to list Lolita as endangered, clearing the way for groups to pressure the aquarium to retire her from performing and send her back to the waters off Washington state where they will try to reunite her with her family. Picture taken January 21, 2015. REUTERS/Andrew Innerarity (UNITED STATES - Tags: ANIMALS ENVIRONMENT SOCIETY) 

Lolita the Killer Whale and a trainer perform during a show at the Miami Seaquarium in Miami January 21, 2015. In the coming days the National Oceanic and Atmospheric Administration will decide whether to list Lolita as endangered, clearing the way for groups to pressure the aquarium to retire her from performing and send her back to the waters off Washington state where they will try to reunite her with her family. Picture taken January 21, 2015. REUTERS/Andrew Innerarity (UNITED STATES - Tags: ANIMALS ENVIRONMENT SOCIETY) 

The giant guitarfish "Marina" is measured by two divers during the annual inventory in Hagenbeck's zoo in Hamburg, northern Germany December 29, 2014. REUTERS/Fabian Bimmer (GERMANY - Tags: ANIMALS SOCIETY) 

Visitors wave to a woman dressed as a mermaid wearing a Santa Claus cap as she performs from inside a tank at the Sao Paulo Aquarium December 17, 2014. According to organizers, the performance aims to narrate about the myth and legend of mermaids. REUTERS/Paulo Whitaker (BRAZIL - Tags: SOCIETY TPX IMAGES OF THE DAY) 

A diver dressed in a Santa Claus costume feeds fish at the Sunshine Aquarium in Tokyo December 9, 2014. The Santa Claus attraction will be held until Christmas Day. REUTERS/Toru Hanai (JAPAN - Tags: SOCIETY TPX IMAGES OF THE DAY ANIMALS) 

A child looks at a diver dressed in a Santa Claus costume during an event celebrating the upcoming Christmas holiday at Lotte World Aquarium in Seoul December 8, 2014. REUTERS/Kim Hong-Ji (SOUTH KOREA - Tags: ANIMALS SOCIETY RELIGION) 

A diver dressed as Santa Claus feeds fishes inside a fish tank at the Sea Life aquarium in Berlin December 2, 2014. REUTERS/Hannibal Hanschke (GERMANY - Tags: ENTERTAINMENT SOCIETY RELIGION)

A diver wearing a Santa Claus costume feeds fish inside an oceanarium in Manila December 2, 2014. Filipinos are known for celebrating Christmas the longest by playing yuletide songs on local radio stations and at malls as early as November until the observance of the Three Kings on the 1st week of January. REUTERS/Romeo Ranoco (PHILIPPINES - Tags: SOCIETY TRAVEL) 

A shark swims inside the new Shark Mystique exhibit at Ocean Park in Hong Kong June 26,2014. The exhibit houses 100 sharks of 15 species in a multi-storey aquarium and is intended to highlight conservation, education and the importance of biodiversity. REUTERS/Tyrone Siu (CHINA - Tags: ANIMALS ENVIRONMENT TRAVEL EDUCATION) 

Visitors watch a professional diver, wearing Brazil's soccerjersey, as he plays football inside an aquarium tank at Ocean Park in Manila June 21, 2014. Manila Ocean Park celebrates the World Cup 2014 which held at Rio de Janeiro, Brazil. REUTERS/Romeo Ranoco (PHILIPPINES - Tags: SOCIETY SPORT SOCCER WORLD CUP) 

Professional divers wearing mermaid costumes perform for visitors in a pool at the Ocean Park in Manila May 24, 2014. REUTERS/Romeo Ranoco (PHILIPPINES - Tags: SOCIETY) 

Humboldt penguins swim in their tank at the Paris Zoological Park in the Bois de Vincennes in the east of Paris April 8, 2014. Inaugurated in 1934, the Paris Zoo will reopen for the public on April 12, 2014 after being closed for four-years for renovation, transforming the zoo with new quarters for animals and greater information for visitors about the animals and their environment. REUTERS/Charles Platiau (FRANCE - Tags: SOCIETY TRAVEL ANIMALS) 

Visitors look at their portraits attached onto a projection of jellyfish images at the Hong Kong Ocean Park March 25, 2014. REUTERS/Bobby Yip (CHINA - Tags: SOCIETY) 

Young children get a close-up view of an Orca killer whale during a visit to the animal theme park SeaWorld in San Diego, California March 19, 2014 REUTERS/Mike Blake (UNITED STATES - Tags: ANIMALS ENVIRONMENT SOCIETY TRAVEL TPX IMAGES OF THE DAY) 

A dolphin balances a ball in a pool at the Dolphinarium in the Black Sea coast town of Constanta, 226 km east of Bucharest February 14, 2014. Romanian politician Remus Cernea is pushing a cause that he acknowledges few of his fellow Romanian lawmakers care about: giving dolphins the same rights as humans. The 39-year-old activist politician introduced a bill in parliament last week that would recognise the marine mammals as "non-human persons", on account of their highly developed intelligence, personalities and behaviour patterns. The bill, which will be debated in the Romanian upper house in the coming weeks, would make humans and dolphins equal before the law. Dolphin killers would be given the same sentences as murderers of human beings. The bill would also ban the use of dolphins in live entertainment shows. REUTERS/Bogdan Cristel (ROMANIA - Tags: ANIMALS ENVIRONMENT SOCIETY POLITICS) 

Aquarium specialist Sylvain Joumier holds one of the two one-year-old albino alligator in a vivarium at the Tropical aquarium in Paris February 12, 2014. The two alligators are the result of a captive breeding program which protect endangered species and will presented to the public in a vivarium. REUTERS/Philippe Wojazer (FRANCE - Tags: ANIMALS SOCIETY) 

Divers perform a dragon dance as they "bless" the shipwreck habitat of the S.E.A. Aquarium as part of the festive Chinese New Year celebrations in Sentosa, Singapore January 30, 2014. The Lunar New Year, which welcomes the year of the horse, falls on Friday. REUTERS/Edgar Su (SINGAPORE - Tags: SOCIETY TPX IMAGES OF THE DAY) 

Taiga the polar bear looks on at the Quebec Aquarium in Quebec City, December 30, 2013. REUTERS/Mathieu Belanger (CANADA - Tags: ANIMALS SOCIETY) 

Children watch zookeepers Andreas Steffens and Heidrun Rohrs as they clean the aquarium's pane during an animal stocktaking at the Hagenbeck Zoo in Hamburg December 27, 2013.
REUTERS/Morris Mac Matzen (GERMANY - Tags: ANIMALS) 

Tapeko (L) and her new born male dolphin calf are seen swimming together at the Brookfield Zoo in Chicago, Illinois, December 10, 2013. The calf, born eight weeks ago, is still unnamed. REUTERS/Jim Young (UNITED STATES - Tags: ANIMALS SOCIETY) 

A diver dressed in a Santa Claus costume swims with sardines during a promotional event for the Christmas "Sardines Feeding Show with Santa Claus" at the Coex Aquarium in Seoul December 10, 2013. REUTERS/Kim Hong-Ji (SOUTH KOREA - Tags: SOCIETY TPX IMAGES OF THE DAY) 

A diver dressed as Santa Claus rings the bell next to a ray inside a fish tank at the Sea Life aquarium in Berlin, December 3, 2013. REUTERS/Fabrizio Bensch (GERMANY - Tags: SOCIETY ANIMALS TPX IMAGES OF THE DAY) 

A young visitor to the Vancouver Aquarium watches "Scuba Santa" swim in the Strait of Georgia display in Vancouver, British Columbia November 28, 2013. REUTERS/Andy Clark (CANADA - Tags: SOCIETY ANIMALS) 

A girl touches a dolphin during a dolphin therapy session at the Nemo Dolphinarium in Kiev September 28, 2013. The aquarium provides a programme for pregnant women, children and people with disabilities to receive therapy by swimming, touching and playing with the dolphins. REUTERS/Gleb Garanich (UKRAINE - Tags: SOCIETY ANIMALS HEALTH TPX IMAGES OF THE DAY) 

Women dressed as sirens perform from inside a tank to school children (not pictured) at the Sao Paulo Aquarium September 17, 2013. According to the organizers, the performance aims to narrate school children about Myth and Legend of the Sirens. REUTERS/Nacho Doce (BRAZIL - Tags: EDUCATION SOCIETY) 

Women dressed as sirens perform from inside a tank as school children use their mobile phones to take photos of them at the Sao Paulo Aquarium September 17, 2013. According to organizers, the performance aims to narrate school children about Myth and Legend of the Sirens. REUTERS/Nacho Doce (BRAZIL - Tags: EDUCATION SOCIETY) 

Nick Vujicic, an Australian motivational speaker who was born without limbs, dives with sharks at the Marine Life Park in Singapore September 5, 2013. Vujicic dived in a customized acrylic enclosure that takes in a 360-degree view of the shark habitat at the aquarium. Vujicic is in Singapore to give a motivational talk to a 5000 strong audience on Saturday. REUTERS/Edgar Su (SINGAPORE - Tags: SOCIETY) 

Nick Vujicic, an Australian motivational speaker who was born without limbs, swims with sharks at the Marine Life Park in Singapore September 5, 2013. Vujicic dived with sharks in a customized acrylic enclosure that takes in a 360-degree view of the shark habitat at the aquarium. Vujicic is in Singapore to give a motivational talk to a 5,000 strong audience on Saturday. REUTERS/Edgar Su (SINGAPORE - Tags: SOCIETY TPX IMAGES OF THE DAY) 

Steve Westnedge plays his saxophone for a Leopard Seal known as "Casey" as part of a study on the animal's reactions to different sounds at Sydney's Taronga Zoo August 19, 2013. Westnedge, who is also the zoo's elephant keeper, plays his saxophone next to the underwater viewing window to assist the study by researchers from the Australian Marine Mammal Research Centre. The seal occasionally responds with his own sounds, depending on the time of year, which are normally used when wanting to attract mates or establish territories. REUTERS/David Gray (AUSTRALIA - Tags: SOCIETY TPX IMAGES OF THE DAY ANIMALS) 

A male albino caiman alligator (caiman crocodilus yacare) called "Bino" receives acupuncture treatment at Sao Paulo aquarium in Sao Paulo August 13, 2013. "Bino" is receiving weekly applications of acupuncture for the treatment of Scoliosis and Kyphosis. REUTERS/Paulo Whitaker (BRAZIL - Tags: ANIMALS) 

A male albino caiman alligator (caiman crocodilus yacare) called "Bino" relaxes in the water next to a female after receiving acupuncture treatment at Sao Paulo aquarium in Sao Paulo August 13, 2013. "Bino" is receiving weekly applications of acupuncture for the treatment of Scoliosis and Kyphosis. REUTERS/Paulo Whitaker (BRAZIL - Tags: ANIMALS) 

Divers prepare for an underwater party as a small shark swims past, as part of the 25th anniversary celebrations of Sydney Aquarium in central Sydney June 25, 2013. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SOCIETY ANIMALS) 

Model Hannah Fraser dressed as a mermaid swins in an aquarium to promote the film "Tears of a Mermaid" in Cannes during the 66th Cannes Film Festival May 23, 2013. REUTERS/Eric Gaillard (FRANCE - Tags: ENTERTAINMENT)

A child watches jellyfish swim in a large tank at the Vancouver Aquarium in Vancouver, British Columbia May 16, 2013. The tank contains around 2,000 spotted jellyfish and is part of a major display of 15 various species from around the world. REUTERS/Andy Clark (CANADA - Tags: SOCIETY ANIMALS TRAVEL TPX IMAGES OF THE DAY) 

A visitor takes pictures of jellyfish swimming in a large tank at the Vancouver Aquarium in Vancouver, British Columbia May 16, 2013. The tank contains around 2,000 spotted jellyfish and is part of a major display of 15 various species from around the world. REUTERS/Andy Clark (CANADA - Tags: SOCIETY ANIMALS) 

A boy watches jellyfish swim in a large tank at the Vancouver Aquarium in Vancouver, British Columbia May 16, 2013. The tank contains around 2,000 spotted jellyfish and is part of a major display of 15 various species from around the world. REUTERS/Andy Clark (CANADA - Tags: SOCIETY ANIMALS TPX IMAGES OF THE DAY) 

A man takes pictures of a stingray in the Resorts World Sentosa's S.E.A. Aquarium in Singapore April 8, 2013. The aquarium, which houses more than 80,000 animals of over 800 species in 42.8 million litres of water, is on Monday the official record holder of two Guinness World Records - for the world's largest aquarium and for the world's largest acrylic panel in its Ocean Gallery, according to local media. REUTERS/Edgar Su (SINGAPORE - Tags: SOCIETY TRAVEL ANIMALS) 

A girl runs to take pictures of fishes in the Resorts World Sentosa's S.E.A. Aquarium in Singapore April 8, 2013. The aquarium, which houses more than 80,000 animals of over 800 species in 42.8 million litres of water, is on Monday the official record holder of two Guinness World Records - for the world's largest aquarium and for the world's largest acrylic panel in its Ocean Gallery, according to local media. REUTERS/Edgar Su (SINGAPORE - Tags: SOCIETY TRAVEL) 

A diver dressed in a Santa Claus costume gestures as children watch during a promotional event for the Christmas "Sardines Feeding Show with Santa Claus" at the Coex Aquarium in Seoul December 11, 2012. REUTERS/Kim Hong-Ji (SOUTH KOREA - Tags: SOCIETY MARITIME ANIMALS) 

A diver dressed as Santa Claus swims with a dolphin at Hakkeijima Sea Paradise in Yokohama, south of Tokyo November 27, 2012. The underwater feeding session involving divers dressed as Santa will take place every day until Christmas Day. REUTERS/Yuriko Nakao (JAPAN - Tags: SOCIETY ANIMALS TPX IMAGES OF THE DAY) 

A professional diver wearing a Santa Claus suit feeds sharks inside a giant aquarium as part of celebrations for Christmas at the Manila Ocean Park, November 15, 2012. The Philippines, a mainly Roman Catholic country in Southeast Asia, celebrates one of the longest Christmas holiday in the world playing Christmas carols in shopping malls in September and putting up lantern and fireworks early in December. REUTERS/Romeo Ranoco (PHILIPPINES - Tags: SOCIETY TRAVEL) 

French diver Pierre Frolla, a four-time apnea diving world champion, swims with sharks after a projection of the film "In the eyes of sharks" (Dans les Yeux des requins) at the Aquarium of Paris November 11, 2012. REUTERS/Gonzalo Fuentes (FRANCE - Tags: ANIMALS SOCIETY SPORT) 

A girl looks at a sea lion at the zoo in Frankfurt October 19, 2012. REUTERS/Lisi Niesner (GERMANY - Tags: ANIMALS) 

Children look at a sea lion at the zoo in Frankfurt October 19, 2012. REUTERS/Lisi Niesner (GERMANY - Tags: ANIMALS) 

A diver feeds a sting ray at the ocean tunnel walk in Sydney Aquarium September 24, 2012. The Ocean tunnel walk was open to the public again on Monday after an AUD 5 million ($5.2 million) refurbish and nine months of work, according to the Aquarium. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SOCIETY) 

A girl looks at a shark as it swims pass at the ocean tunnel walk in Sydney Aquarium September 24, 2012. The Ocean tunnel walk was open to the public again on Monday after an AUD 5 million ($5.2 million) refurbish and nine months of work, according to the Aquarium. REUTERS/Daniel Munoz (AUSTRALIA - Tags: SOCIETY) 

A woman dressed as a mermaid swims in a tank during "Spirits of Tampa" event, which was held for participants of the Republican National Convention, at The Florida Aquarium in Tampa, Florida August 27, 2012. REUTERS/Eric Thayer (UNITED STATES - Tags: POLITICS ELECTIONS) 

A woman dressed as a mermaid swims in a tank during "Spirits of Tampa" event, which was held for participants of the Republican National Convention, at The Florida Aquarium in Tampa, Florida August 27, 2012. REUTERS/Eric Thayer (UNITED STATES - Tags: POLITICS ELECTIONS) 

A king penguin swims in a pool at the zoo in Zurich August 15, 2012. REUTERS/Michael Buholzer (SWITZERLAND - Tags: ANIMALS ENVIRONMENT) 

Water sprays from killer whales which perform during a show at the Marineland aquatic park in Antibes July 31, 2012. REUTERS/Eric Gaillard (FRANCE - Tags: ANIMALS ENVIRONMENT) 

Visitors tour the new North Pole Encounter, part of the Polar Adventure, of Ocean Park in Hong Kong July 12, 2012. The marine theme park on Thursday launched Asia's first themed area integrating immersive presentations of Arctic and Antarctic animals, including penguins and seals. REUTERS/Bobby Yip (REUTERS - Tags: ANIMALS ENVIRONMENT TRAVEL) 

A penguin swims at the new South Pole Spectacular, part of the Polar Adventure, of Ocean Park in Hong Kong July 12, 2012. The marine theme park on Thursday launched Asia's first themed area integrating immersive presentations of Arctic and Antarctic animals, including penguins and seals. REUTERS/Bobby Yip (REUTERS - Tags: ANIMALS ENVIRONMENT TRAVEL) 

A penguin swims at the new South Pole Spectacular, part of the Polar Adventure, of Ocean Park in Hong Kong July 12, 2012. The marine theme park on Thursday launched Asia's first themed area integrating immersive presentations of Arctic and Antarctic animals, including penguins and seals. REUTERS/Bobby Yip (REUTERS - Tags: ANIMALS ENVIRONMENT TRAVEL) 

A visitor (L) has her photograph taken next to two beluga whales as they swim in their enclosure at the Beijing Aquarium June 21, 2012. The aquarium is the largest in China, and promoted as "the world's largest inland aquarium", with more than 1,000 marine species and freshwater fish on display. REUTERS/David Gray (CHINA - Tags: SOCIETY TRAVEL ANIMALS) 

German Chancellor Angela Merkel arrives for a group picture with representatives at the "Council of the Baltic Sea States" leader summit in Stralsund, May 31, 2012. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS) 

Green ocean turtle Gonzales plays underwater with a diver at the SeaLife aquarium in Munich May 17, 2012. Bayern Munich will face Chelsea in the Champions League final soccer match on May 19, 2012. REUTERS/Michaela Rehle (GERMANY - Tags: SOCIETY SPORT SOCCER ANIMALS) 

Children look at fish in a saltwater aquarium at 'Haus des Meeres' (Aqua Terra Zoo) in Vienna April 12, 2012. REUTERS/Lisi Niesner (AUSTRIA - Tags: ANIMALS SOCIETY) 

Mediterranean Jellies swim past a viewing tank during the preview for "The Jellies Experience" exhibition at the Monterey Bay Aquarium in Monterey, California, March 30, 2012. The new $3.5 million exhibition features 16 jellyfish species from around the world in a collection of live and interactive displays, according to Monterey Bay Aquarium officials. REUTERS/Richard Green (UNITED STATES - Tags: ANIMALS ENVIRONMENT SCIENCE TECHNOLOGY) 

Japanese Sea Nettles, the first jellies to greet visitors, are seen during the preview for "The Jellies Experience" exhibition at the Monterey Bay Aquarium in Monterey, California, March 30, 2012. The new $3.5 million exhibition features 16 jellyfish species from around the world in a collection of live and interactive displays, according to Monterey Bay Aquarium officials. REUTERS/Richard Green (UNITED STATES - Tags: ANIMALS ENVIRONMENT SCIENCE TECHNOLOGY) 

A visitor photographs Japanese Sea Nettle Jellies through a viewing window during "The Jellies Experience" exhibition at the Monterey Bay Aquarium in Monterey, California, March 30, 2012. The new $3.5 million exhibition features 16 jellyfish species from around the world in a collection of live and interactive displays, according to Monterey Bay Aquarium officials. REUTERS/Richard Green (UNITED STATES - Tags: ANIMALS ENVIRONMENT SCIENCE TECHNOLOGY)