After months of training to learn to fly and hunt, two Eurasian eagle-owls who were born at the Zoo Aquarium in Madrid last February, wait to be released into the wild next to other eagle-owls at the facilities of Brinzal organisation, which works to rescue, rehabilitate, and reintroduce autochthonous and protected birds of prey in Madrid, Spain, October 4, 2022. REUTERS/Susana Vera 

Patricia Orejas, from the Brinzal Recovery Centre for nocturnal birds of prey, does a final check-up on a Eurasian eagle-owl who was born at the Zoo Aquarium in Madrid last February, before its release into the wild at their facilities in Madrid, Spain, October 4, 2022. REUTERS/Susana Vera 

A Eurasian eagle-owl who was born at the Zoo Aquarium in Madrid last February flies upon being released into the wild in Villamantilla, west of Madrid, Spain, October 4, 2022. REUTERS/Susana Vera 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine October 1, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine October 1, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine October 1, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine October 1, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine October 1, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine October 1, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine October 1, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine October 1, 2022. Inscription on a poster reads: 'Back my daddy to me’. REUTERS/Valentyn Ogirenko TPX IMAGES OF THE DAY 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine October 1, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine October 1, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine October 1, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine October 1, 2022. REUTERS/Valentyn Ogirenko 

Relatives of defenders of the Azovstal Iron and Steel Works in Mariupol hold posters with inscription 'I am waiting' as they demand to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, in central Kyiv, Ukraine September 24, 2022. REUTERS/Valentyn Ogirenko 

Relatives of defenders of the Azovstal Iron and Steel Works in Mariupol hold posters with inscription 'I am waiting' as they demand to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, in central Kyiv, Ukraine September 24, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine September 23, 2022. REUTERS/Valentyn Ogirenko 

A woman attends a rally of relatives of Ukrainian prisoners of war (POWs) demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine September 23, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine September 23, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine September 23, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine September 23, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine September 23, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine September 23, 2022. REUTERS/Valentyn Ogirenko 

Relatives of Ukrainian prisoners of war (POWs) attend a rally demanding to speed up their release from a Russian captivity, amid Russia's attack on Ukraine, at the Independence Square in Kyiv, Ukraine September 23, 2022. REUTERS/Valentyn Ogirenko 

Relatives of defenders of the Azovstal Iron and Steel Works in Mariupol hold a rally demanding authorities' assistance with the release of Ukrainian prisoners of war (POWs) from Russian captivity, as Russia's attack on Ukraine continues, in the centre of Kyiv, Ukraine, August 24, 2022. REUTERS/Valentyn Ogirenko 

Relatives of defenders of the Azovstal Iron and Steel Works in Mariupol hold a rally demanding authorities' assistance with the release of Ukrainian prisoners of war (POWs) from Russian captivity, as Russia's attack on Ukraine continues, in the centre of Kyiv, Ukraine, August 24, 2022. REUTERS/Valentyn Ogirenko 

A man stands next to Ukrainian flags with names of service members, who are in Russian captivity, as Russia's attack on Ukraine continues, at the Independence square in Kyiv, Ukraine August 24, 2022. REUTERS/Valentyn Ogirenko 

A local woman sitting in a restaurant wears a ring made from ivory, at Ban Ta Klang elephant village in Surin, Thailand June 16, 2022. Thailand has about 3,200 to 4,000 captive elephants, according to official agencies, and about 3,500 in the wild. REUTERS/Jorge Silva SEARCH "SILVA SURIN ELEPHANTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A chained elephant stands under the rain at Ban Ta Klang village in Surin, Thailand June 15, 2022. Thailand has about 3,200 to 4,000 captive elephants, according to official agencies, and about 3,500 in the wild. REUTERS/Jorge Silva SEARCH "SILVA SURIN ELEPHANTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Frederik Mayet plays the character of Jesus Christ during the scene "The Last Supper and the Captivity of Jesus", during a rehearsal of the 42nd Oberammergau Passion Play, in Oberammergau, Germany, May 4, 2022. REUTERS/Lukas Barth PUBLICATION ONLY WITH REPORTS RELATED TO THE OBERAMMERGAU PASSION PLAY 

Frederik Mayet plays the character of Jesus Christ during the scene "The Last Supper and the Captivity of Jesus", during a rehearsal of the 42nd Oberammergau Passion Play in Oberammergau, Germany, May 4, 2022. REUTERS/Lukas Barth PUBLICATION ONLY WITH REPORTS RELATED TO THE OBERAMMERGAU PASSION PLAY 

Frederik Mayet plays the character of Jesus Christ during the scene "The Last Supper and the Captivity of Jesus", during a rehearsal of the 42nd Oberammergau Passion Play in Oberammergau, Germany, May 4, 2022. REUTERS/Lukas Barth PUBLICATION ONLY WITH REPORTS RELATED TO THE OBERAMMERGAU PASSION PLAY 

Frederik Mayet plays the character of Jesus Christ during the scene "The Last Supper and the Captivity of Jesus", during a rehearsal of the 42nd Oberammergau Passion Play in Oberammergau, Germany, May 4, 2022. REUTERS/Lukas Barth PUBLICATION ONLY WITH REPORTS RELATED TO THE OBERAMMERGAU PASSION PLAY 

Frederik Mayet plays the character of Jesus Christ during the scene "The Last Supper and the Captivity of Jesus", during a rehearsal of the 42nd Oberammergau Passion Play, in Oberammergau, Germany, May 4, 2022. REUTERS/Lukas Barth PUBLICATION ONLY WITH REPORTS RELATED TO THE OBERAMMERGAU PASSION PLAY 

Ukraine's President Volodymyr Zelenskiy awards an employee of the Chornobyl Nuclear Power Plant who was under Russian captivity at the plant, during a joint news conference with International Atomic Energy Agency (IAEA) Director General Rafael Grossi, as Russia's attack on Ukraine continues, in Kyiv, Ukraine April 26, 2022. REUTERS//Valentyn Ogirenko 

Ukraine's President Volodymyr Zelenskiy awards an employee of the Chornobyl Nuclear Power Plant who was under Russian captivity at the plant, during a joint news conference with International Atomic Energy Agency (IAEA) Director General Rafael Grossi (not pictured), as Russia's attack on Ukraine continues, in Kyiv, Ukraine April 26, 2022. REUTERS//Valentyn Ogirenko 

Ukraine's President Volodymyr Zelenskiy awards employees of the Chornobyl Nuclear Power Plant who were under Russian captivity at the plant, during a joint news conference with International Atomic Energy Agency (IAEA) Director General Rafael Grossi (not pictured), as Russia's attack on Ukraine continues, in Kyiv, Ukraine April 26, 2022. REUTERS//Valentyn Ogirenko 

Liudmyla Kozak, Chornobyl Nuclear Power Plant engineer, who was under Russian captivity at the plant during 25 days, stand next to the monument to firefighters and workers who died after the Chornobyl nuclear disaster, in the town of Slavutych, Ukraine April 25, 2022. Picture taken April 25, 2022. REUTERS/Gleb Garanich 

Liudmyla Kozak, Chornobyl Nuclear Power Plant engineer, who was under Russian captivity at the plant during 25 days, poses for a picture in the town of Slavutych, Ukraine April 25, 2022. Picture taken April 25, 2022. REUTERS/Gleb Garanich 

A baby giraffe, which was born in captivity, is displayed in its enclosure for the first time to the public, at the Buin Zoo in Buin, Santiago, Chile April 22, 2022. REUTERS/Sofia Yanjari 

A baby giraffe, which was born in captivity, is displayed in its enclosure for the first time to the public, at the Buin Zoo in Buin, Santiago, Chile April 22, 2022. REUTERS/Sofia Yanjari 

A baby giraffe, which was born in captivity, is displayed in its enclosure for the first time to the public, at the Buin Zoo in Buin, Santiago, Chile April 22, 2022. REUTERS/Sofia Yanjari 

A baby giraffe, which was born in captivity, is reflected on the water while displayed in its enclosure for the first time to the public, at the Buin Zoo in Buin, Santiago, Chile April 22, 2022. REUTERS/Sofia Yanjari 

A baby giraffe, which was born in captivity, is displayed in its enclosure for the first time to the public, at the Buin Zoo in Buin, Santiago, Chile April 22, 2022. REUTERS/Sofia Yanjari 

Vasyl Khilyuk, who survived Russian captivity, smokes in front of his damaged house, as Russia's invasion of Ukraine continues, in the village of Kozarovychi, near Kyiv, Ukraine, April 22, 2022. REUTERS/Viacheslav Ratynskyi 

Vitalii Zhyvotovskyi, 50, stands in his kitchen holding a white sack that he told Reuters was used by Russian troops to hood their captives and beat them in Bucha, Kyiv region, Ukraine April 19, 2022. Picture taken April 19, 2022. To match Special Report UKRAINE-CRISIS/BUCHA-KILLINGS-SOLDIERS REUTERS/Zohra Bensemra 

Baby elephant Pangmaemae Plainamo takes a bath at Ban Ta Klang village in Surin, Thailand April 8, 2022. Thailand has about 3,200 to 4,000 captive elephants, according to official agencies, and about 3,500 in the wild. REUTERS/Jorge Silva SEARCH "SILVA SURIN ELEPHANTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

An elephant rides in a truck at Ban Ta Klang village in Surin, Thailand April 8, 2022. Thailand has about 3,200 to 4,000 captive elephants, according to official agencies, and about 3,500 in the wild. REUTERS/Jorge Silva SEARCH "SILVA SURIN ELEPHANTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Baby elephant Pangmaemae Plainamo walks with her mother and a mahout at Ban Ta Klang village in Surin, Thailand April 8, 2022. Thailand has about 3,200 to 4,000 captive elephants, according to official agencies, and about 3,500 in the wild. REUTERS/Jorge Silva SEARCH "SILVA SURIN ELEPHANTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

An elephant is chained next to a tree while being tamed at Ban Ta Klang elephant village in Surin, Thailand April 8, 2022. Thailand has about 3,200 to 4,000 captive elephants, according to official agencies, and about 3,500 in the wild. REUTERS/Jorge Silva SEARCH "SILVA SURIN ELEPHANTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A man, with a baby in a stroller, stands next to an elephant in the yard of a mahout's house at Ban Ta Klang elephant village in Surin, Thailand April 6, 2022. Thailand has about 3,200 to 4,000 captive elephants, according to official agencies, and about 3,500 in the wild. REUTERS/Jorge Silva SEARCH "SILVA SURIN ELEPHANTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY 

A mahout named Sak, 55, poses with his elephant at Ban Ta Klang elephant village in Surin, Thailand April 5, 2022. Thailand has about 3,200 to 4,000 captive elephants, according to official agencies, and about 3,500 in the wild. REUTERS/Jorge Silva SEARCH "SILVA SURIN ELEPHANTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

An elephant with bones showing through its skin is seen outside a mahout's house at Ban Ta Klang elephant village in Surin, Thailand April 5, 2022. Thailand has about 3,200 to 4,000 captive elephants, according to official agencies, and about 3,500 in the wild. REUTERS/Jorge Silva SEARCH "SILVA SURIN ELEPHANTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

An octopus is pictured in a tank at an octopus farm as part of a community project in Sisal, in Yucatan state, Mexico March 12, 2022. Picture taken March 12, 2022. REUTERS/Lorenzo Hernandez 

An octopus is pictured in a tank at an octopus farm as part of a community project in Sisal, in Yucatan state, Mexico March 12, 2022. Picture taken March 12, 2022. REUTERS/Lorenzo Hernandez 

An octopus is pictured in a tank at an octopus farm as part of a community project in Sisal, in Yucatan state, Mexico March 12, 2022. Picture taken March 12, 2022. REUTERS/Lorenzo Hernandez 

An octopus is pictured in a tank at an octopus farm as part of a community project in Sisal, in Yucatan state, Mexico March 12, 2022. Picture taken March 12, 2022. REUTERS/Lorenzo Hernandez 

Biology student Eduardo Garcia prepares food for the octopuses, made from fish waste like head and guts, at an octopus farm as part of a community project in Sisal, in Yucatan state, Mexico March 10, 2022. Picture taken March 10, 2022. REUTERS/Lorenzo Hernandez 

Biology student Eduardo Garcia prepares food for the octopuses, made from fish waste like head and guts, as Dr. Pedro Gallardo observes at an octopus farm as part of a community project in Sisal, in Yucatan state, Mexico March 10, 2022. Picture taken March 10, 2022. REUTERS/Lorenzo Hernandez