Employees take part in an operation to transport and release two orcas at a facility, where nearly 100 orcas and beluga whales are held in cages, in Srednyaya Bay in Primorsky Region, Russia June 20, 2019. REUTERS/Yuri Maltsev

People gather near a facility, where nearly 100 orcas and beluga whales are held in cages, during an operation to transport and release two orcas in Srednyaya Bay in Primorsky Region, Russia June 20, 2019. REUTERS/Yuri Maltsev

Employees take part in an operation to transport and release two orcas at a facility, where nearly 100 orcas and beluga whales are held in cages, in Srednyaya Bay in Primorsky Region, Russia June 20, 2019. REUTERS/Yuri Maltsev

Employees take part in an operation to transport and release two orcas at a facility, where nearly 100 orcas and beluga whales are held in cages, in Srednyaya Bay in Primorsky Region, Russia June 20, 2019. REUTERS/Yuri Maltsev

Employees take part in an operation to transport and release two orcas at a facility, where nearly 100 orcas and beluga whales are held in cages, in Srednyaya Bay in Primorsky Region, Russia June 20, 2019. REUTERS/Yuri Maltsev

Employees take part in an operation to transport and release two orcas at a facility, where nearly 100 orcas and beluga whales are held in cages, in Srednyaya Bay in Primorsky Region, Russia June 20, 2019. REUTERS/Yuri Maltsev

Employees take part in an operation to transport and release two orcas at a facility, where nearly 100 orcas and beluga whales are held in cages, in Srednyaya Bay in Primorsky Region, Russia June 20, 2019. REUTERS/Yuri Maltsev

Greenpeace activists hold a protest against the "whale prison", a facility in Primorsky Region where nearly 100 whales including orcas and beluga whales are held in cages, in Vladivostok, Russia May 13, 2019. REUTERS/Yuri Maltsev

Greenpeace activists hold a protest against the "whale prison", a facility in Primorsky Region where nearly 100 whales including orcas and beluga whales are held in cages, in Vladivostok, Russia May 13, 2019. REUTERS/Yuri Maltsev

A Greenpeace activist attends a protest against so-called "whale prison", where the white whales and orcas are held in cages in the Russian Far East, in Moscow, Russia, February 19, 2019. A placard reads: "Freedom to orcas and white whales". REUTERS/Shamil Zhumatov

A child plays with an inflatable toy as Greenpeace activists protest against so-called "whale prison", where the white whales and orcas are held in cages in the Russian Far East, in Moscow, Russia, February 19, 2019. REUTERS/Shamil Zhumatov

A Greenpeace activist attends a protest against so-called "whale prison", where the white whales and orcas are held in cages in the Russian Far East, in Moscow, Russia, February 19, 2019. REUTERS/Shamil Zhumatov

Greenpeace activists attend a protest against so-called "whale prison", where the white whales and orcas are held in cages in the Russian Far East, in Moscow, Russia, February 19, 2019. Banners read: "Freedom to orcas and white whales". REUTERS/Shamil Zhumatov

A worker finishes installing an electrical UAV "ORCA" made by Eviation, on static display, before the opening of the 52nd Paris Air Show at Le Bourget Airport near Paris, France June 17, 2017. REUTERS/Pascal Rossignol

Stuffed Orca whale toys are displayed for sale as SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils their new Orca Encounter that replaces the parks Orca Show with a documentary-style format at Sea World in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

SeaWorld unveils its new Orca Encounter show in San Diego, California, U.S., May 31, 2017. REUTERS/Mike Blake

Carlos Yaipen, Director of Animal Science and Well-being Organization (ORCA), check the sea lions before they are released to the wild after being rescued by marine biologists, in Callao, Peru. October 14, 2016. REUTERS/Guadalupe Pardo

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/File Photo

People for the Ethical Treatment of Animals (PETA) activists hold a demonstration, with 38 activists painted as killer whales to represent what they say are the number of orcas that died prematurely at Sea World, in San Diego, California, U.S., September 1, 2016. REUTERS/Mike Blake

People for the Ethical Treatment of Animals (PETA) activists hold a demonstration, with 38 activists painted as killer whales to represent what they say are the number of orcas that died prematurely at Sea World, in San Diego, California, U.S., September 1, 2016. REUTERS/Mike Blake

People for the Ethical Treatment of Animals (PETA) activists hold a demonstration, with 38 activists painted as killer whales to represent what they say are the number of orcas that died prematurely at Sea World, in San Diego, California, U.S., September 1, 2016. REUTERS/Mike Blake

People for the Ethical Treatment of Animals (PETA) activists hold a demonstration, with 38 activists painted as killer whales to represent what they say are the number of orcas that died prematurely at Sea World, in San Diego, California, U.S., September 1, 2016. REUTERS/Mike Blake

People for the Ethical Treatment of Animals (PETA) activists hold a demonstration, with 38 activists painted as killer whales to represent what they say are the number of orcas that died prematurely at Sea World, in San Diego, California, U.S., September 1, 2016. REUTERS/Mike Blake

People for the Ethical Treatment of Animals (PETA) activists hold a demonstration, with 38 activists painted as killer whales to represent what they say are the number of orcas that died prematurely at Sea World, in San Diego, California, U.S., September 1, 2016. REUTERS/Mike Blake

People for the Ethical Treatment of Animals (PETA) activists hold a demonstration, with 38 activists painted as killer whales to represent what they say are the number of orcas that died prematurely at Sea World, in San Diego, California, U.S., September 1, 2016. REUTERS/Mike Blake

People for the Ethical Treatment of Animals (PETA) activists hold a demonstration, with 38 activists painted as killer whales to represent what they say are the number of orcas that died prematurely at Sea World, in San Diego, California, U.S., September 1, 2016. REUTERS/Mike Blake

People for the Ethical Treatment of Animals (PETA) activists hold a demonstration, with 38 activists painted as killer whales to represent what they say are the number of orcas that died prematurely at Sea World, in San Diego, California, U.S., September 1, 2016. REUTERS/Mike Blake

People for the Ethical Treatment of Animals (PETA) activists hold a demonstration, with 38 activists painted as killer whales to represent what they say are the number of orcas that died prematurely at Sea World, in San Diego, California, U.S., September 1, 2016. REUTERS/Mike Blake

People for the Ethical Treatment of Animals (PETA) activists hold a demonstration, with 38 activists painted as killer whales to represent what they say are the number of orcas that died prematurely at Sea World, in San Diego, California, U.S., September 1, 2016. REUTERS/Mike Blake

Jean-Michel Cousteau, president of the Ocean Futures Society, is interviewed following a People for the Ethical Treatment of Animals (PETA) news conference calling on SeaWorld to release its captive Orcas to sea sanctuaries in San Diego, California, U.S. April 27, 2016. REUTERS/Mike Blake

Jean-Michel Cousteau, president of the Ocean Futures Society, speaks at a People for the Ethical Treatment of Animals (PETA) news conference calling on SeaWorld to release its captive Orcas to sea sanctuaries in San Diego, California, U.S. April 27, 2016. REUTERS/Mike Blake

Jean-Michel Cousteau, president of the Ocean Futures Society, speaks at a People for the Ethical Treatment of Animals (PETA) news conference calling on SeaWorld to release its captive Orcas to sea sanctuaries in San Diego, California, U.S. April 27, 2016. REUTERS/Mike Blake

Jean-Michel Cousteau, president of the Ocean Futures Society, listens to question at a People for the Ethical Treatment of Animals (PETA) news conference calling on SeaWorld to release its captive Orcas to sea sanctuaries in San Diego, California, U.S. April 27, 2016. REUTERS/Mike Blake

Jean-Michel Cousteau, president of the Ocean Futures Society, speaks at a People for the Ethical Treatment of Animals (PETA) news conference calling on SeaWorld to release its captive Orcas to sea sanctuaries in San Diego, California, U.S. April 27, 2016. REUTERS/Mike Blake

Jean-Michel Cousteau, president of the Ocean Futures Society, speaks at a People for the Ethical Treatment of Animals (PETA) news conference calling on SeaWorld to release its captive Orcas to sea sanctuaries in San Diego, California, U.S. April 27, 2016. REUTERS/Mike Blake

Jean-Michel Cousteau, president of the Ocean Futures Society, smiles following a People for the Ethical Treatment of Animals (PETA) news conference calling on SeaWorld to release its captive Orcas to sea sanctuaries in San Diego, California, U.S. April 27, 2016. REUTERS/Mike Blake

Jean-Michel Cousteau, president of the Ocean Futures Society, speaks at a People for the Ethical Treatment of Animals news conference calling on SeaWorld to release its captive killer whales to sea sanctuaries, in San Diego, California, U.S., April 27, 2016. REUTERS/Mike Blake

A killer whale performs during a press visit at the Marineland Zoo in Antibes before its reopening, six months after the flooding that affected the French Riviera in October 2015, in Antibes, France, March 17, 2016. REUTERS/Eric Gaillard

A killer whale performs during a press visit at the Marineland Zoo in Antibes before its reopening, six months after the flooding that affected the French Riviera in October 2015, in Antibes, France, March 17, 2016. REUTERS/Eric Gaillard

An animal caretaker performs with a killer whale during a press visit at the Marineland zoo in Antibes before its reopening, six months after the flooding that affected the French Riviera in October 2015, in Antibes, France, March 17, 2016. REUTERS/Eric Gaillard

A killer whale performs during a press visit at the Marineland Zoo in Antibes before its reopening, six months after the flooding that affected the French Riviera in October 2015, in Antibes, France, March 17, 2016. REUTERS/Eric Gaillard

An animal caretaker poses with two killer whales during a press visit at the Marineland Zoo in Antibes before its reopening, six months after the flooding that affected the French Riviera in October 2015, in Antibes, France, March 17, 2016. REUTERS/Eric Gaillard

An animal caretaker poses with two killer whales during a press visit at the Marineland Zoo in Antibes before its reopening, six months after the flooding that affected the French Riviera in October 2015, in Antibes, France, March 17, 2016. REUTERS/Eric Gaillard

An animal caretaker poses with two killer whales during a press visit at the Marineland Zoo in Antibes before its reopening, six months after the flooding that affected the French Riviera in October 2015, in Antibes, France, March 17, 2016. REUTERS/Eric Gaillard