A Sumatran tiger cub plays with its mother during the annual stocktake at ZSL London Zoo in London, Britain, January 3, 2023. REUTERS/Toby Melville 

A Sumatran tiger and its cub play during the annual stocktake at ZSL London Zoo in London, Britain, January 3, 2023. REUTERS/Toby Melville 

People bid farewell to reservists drafted during the partial mobilisation in the Siberian settlement of Bolsherechye in the Omsk region, Russia September 25, 2022. REUTERS/Alexey Malgavko 

People bid farewell to reservists drafted during the partial mobilisation in the Siberian settlement of Bolsherechye in the Omsk region, Russia September 25, 2022. REUTERS/Alexey Malgavko 

People bid farewell to reservists drafted during the partial mobilisation outside a recruitment office in the Siberian town of Tara in the Omsk region, Russia September 26, 2022. REUTERS/Alexey Malgavko 

People bid farewell to reservists drafted during the partial mobilisation outside a recruitment office in the Siberian town of Tara in the Omsk region, Russia September 26, 2022. REUTERS/Alexey Malgavko 

A woman bids farewell to a reservist drafted during the partial mobilisation in the Siberian settlement of Bolsherechye in the Omsk region, Russia September 25, 2022. REUTERS/Alexey Malgavko 

People react as they bid farewell to reservists drafted during the partial mobilisation in the Siberian settlement of Bolsherechye in the Omsk region, Russia September 25, 2022. REUTERS/Alexey Malgavko 

A woman bids farewell to a reservist drafted during the partial mobilisation in the Siberian settlement of Bolsherechye in the Omsk region, Russia September 25, 2022. REUTERS/Alexey Malgavko 

People gather outside a recruitment office to bid farewell to reservists drafted during the partial mobilisation in the Siberian town of Tara in the Omsk region, Russia September 26, 2022. REUTERS/Alexey Malgavko 

A woman reacts as people gather outside a recruitment office to bid farewell to reservists drafted during the partial mobilisation in the Siberian town of Tara in the Omsk region, Russia September 26, 2022. REUTERS/Alexey Malgavko 

People gather outside a recruitment office to bid farewell to reservists drafted during the partial mobilisation in the Siberian town of Tara in the Omsk region, Russia September 26, 2022. REUTERS/Alexey Malgavko 

A reservist drafted during the partial mobilisation looks out of a bus window outside a recruitment office in the Siberian town of Tara in the Omsk region, Russia September 26, 2022. REUTERS/Alexey Malgavko 

Reservists drafted during the partial mobilisation line up outside a recruitment office in the Siberian town of Tara in the Omsk region, Russia September 26, 2022. REUTERS/Alexey Malgavko TPX IMAGES OF THE DAY 

Reservists drafted during the partial mobilisation line up outside a recruitment office in the Siberian town of Tara in the Omsk region, Russia September 26, 2022. REUTERS/Alexey Malgavko 

A Bengal tiger is seen at the zoo in Havana, Cuba, July 29, 2022. REUTERS/Alexandre Meneghini 

A Bengal tiger cub is seen at the zoo in Havana, Cuba, July 29, 2022. REUTERS/Alexandre Meneghini 

Veterinarian Walid Tandira examines a tiger at Al Rawasy Veterinary Clinic in Benghazi, Libya January 19, 2022. Picture taken January 19, 2022 REUTERS/Esam Omran Al-Fetori 

A tiger receives a medical treatment at Al Rawasy Veterinary Clinic in Benghazi, Libya January 19, 2022. Picture taken January 19, 2022 REUTERS/Esam Omran Al-Fetori 

Amur tiger destroys a sign during the annual stocktake at ZSL Whipsnade Zoo in Dunstable, Britain, January 6, 2022. REUTERS/Matthew Childs 

People carry portraits of people, including Red Army soldiers as they take part in the Immortal Regiment march on the Victory Day rally, which marks the anniversary of the victory over Nazi Germany in World War Two, in the remote Siberian village of Razyezzheye in Yermakovsky district of Krasnoyarsk region, Russia May 9, 2019. REUTERS/Ilya Naymushin 

People carry portraits of people, including Red Army soldiers as they take part in the Immortal Regiment march on the Victory Day rally, which marks the anniversary of the victory over Nazi Germany in World War Two, in the remote Siberian village of Razyezzheye in Yermakovsky district of Krasnoyarsk region, Russia May 9, 2019. REUTERS/Ilya Naymushin 

People carry portraits of people, including Red Army soldiers as they take part in the Immortal Regiment march on the Victory Day rally, which marks the anniversary of the victory over Nazi Germany in World War Two, in the remote Siberian village of Razyezzheye in Yermakovsky district of Krasnoyarsk region, Russia May 9, 2019. REUTERS/Ilya Naymushin 

People carry portraits of people, including Red Army soldiers as they take part in the Immortal Regiment march on the Victory Day rally, which marks the anniversary of the victory over Nazi Germany in World War Two, in the remote Siberian village of Razyezzheye in Yermakovsky district of Krasnoyarsk region, Russia May 9, 2019. REUTERS/Ilya Naymushin 

A boy walks past portraits of well-known Soviet actors before a needlework lesson at a community centre on the eve of Mother's Day in a Siberian settlement, which was founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia November 18, 2018. Picture taken November 18, 2018. REUTERS/Ilya Naymushin TPX IMAGES OF THE DAY 

People take part in celebrations of Maslenitsa, also known as Pancake Week, which is a pagan holiday marking the end of winter, in a street of a Siberian settlement founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, March 10, 2019. Picture taken March 10, 2019. REUTERS/Ilya Naymushin TPX IMAGES OF THE DAY 

People take part in celebrations of Maslenitsa, also known as Pancake Week, which is a pagan holiday marking the end of winter, in a street of a Siberian settlement founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, March 10, 2019. Picture taken March 10, 2019. REUTERS/Ilya Naymushin 

People take part in celebrations of Maslenitsa, also known as Pancake Week, which is a pagan holiday marking the end of winter, in a street of a Siberian settlement founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, March 10, 2019. Picture taken March 10, 2019. REUTERS/Ilya Naymushin 

A girl runs before the beginning of a performance on the occasion of Maslenitsa, also known as Pancake Week, which is a pagan holiday marking the end of winter, in a street of a Siberian settlement founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, March 10, 2019. Picture taken March 10, 2019. REUTERS/Ilya Naymushin 

Local residents Pyotr Rubtsov (L) and Alexander Altukhov harness a horse in a Siberian settlement, which was founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia November 19, 2018. Picture taken November 19, 2018. REUTERS/Ilya Naymushin 

Local resident Alexander Lazarev, 69, pumps water from a street well in a Siberian settlement, which was founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia November 18, 2018. Picture taken November 18, 2018. REUTERS/Ilya Naymushin 

Local resident Vera Lazareva, 66, descendant of an exiled inmate and resident of a Siberian settlement founded as a logging camp and part of the Soviet Union's Gulag prison labour system, fills a bucket with potatoes at a cellar of her house in Tugach southeast of Krasnoyarsk, Russia November 18, 2018. Picture taken November 18, 2018. REUTERS/Ilya Naymushin 

A boy walks past portraits of well-known Soviet actors before a needlework lesson at a community centre on the eve of Mother's Day in a Siberian settlement, which was founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia November 18, 2018. Picture taken November 18, 2018. REUTERS/Ilya Naymushin 

Pupils run outside a school building constructed by teachers' and students' own efforts in a Siberian settlement, which was founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia October 30, 2018. Picture taken October 30, 2018. REUTERS/Ilya Naymushin 

A local resident walks past a private Soviet-made caterpillar cross-country vehicle in a street of a Siberian settlement, which was founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia October 29, 2018. Picture taken October 29, 2018. REUTERS/Ilya Naymushin 

An aerial view shows a Siberian settlement, which was founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, October 30, 2018. Picture taken October 30, 2018. REUTERS/Ilya Naymushin 

People gather at a viewing platform near a former dam, that was built and used by inmates for timber transportation, on a nation-wide remembrance day for the victims of political repressions near a Siberian settlement, which was founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia October 30, 2018. Picture taken October 30, 2018. REUTERS/Ilya Naymushin 

Local resident Vera Lazareva, 66, resident of a Siberian settlement founded as a logging camp and part of the Soviet Union's Gulag prison labour system, and her grandson Grigory, 13, show photographs of their late relatives while posing for a picture at a house in Tugach southeast of Krasnoyarsk, Russia October 29, 2018. The photographs show guard of Kraslag prison camp Pavel Yarg (R) and inmate Fyodor Chuchko. Picture taken October 29, 2018. REUTERS/Ilya Naymushin 

A woman visits an abandoned cemetery on a nation-wide remembrance day for the victims of political repressions near a Siberian settlement, which was founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia October 30, 2018. Picture taken October 30, 2018. REUTERS/Ilya Naymushin 

A man points at Tugach village on the original map of the Kraslag prison camp at a school museum on the eve of a nation-wide remembrance day for the victims of political repressions in a Siberian settlement, which was founded as a logging site and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia October 29, 2018. Picture taken October 29, 2018. REUTERS/Ilya Naymushin 

Valentina Markova, teacher of history at a local school and descendant of an exiled inmate, visits an abandoned cemetery on the eve of a nation-wide remembrance day for the victims of political repressions near a Siberian settlement, which was founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia October 29, 2018. Picture taken October 29, 2018. REUTERS/Ilya Naymushin 

People attend a ceremony at an abandoned cemetery on a nation-wide remembrance day for the victims of political repressions near a Siberian settlement, which was founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia October 30, 2018. Picture taken October 30, 2018. REUTERS/Ilya Naymushin 

A visitor examines an inmate's aluminium plate inside a barrack constructed by prisoners of the Kraslag camp on the eve of a nation-wide remembrance day for the victims of political repressions in a Siberian settlement, which was founded as a logging site and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia October 29, 2018. Picture taken October 29, 2018. REUTERS/Ilya Naymushin 

A woman walks inside a barrack constructed by inmates of the Kraslag camp on the eve of a nation-wide remembrance day for the victims of political repressions in a Siberian settlement, which was founded as a logging site and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia October 29, 2018. Picture taken October 29, 2018. REUTERS/Ilya Naymushin 

A visitor leans against a cross near an abandoned cemetery on a nation-wide remembrance day for the victims of political repressions outside a Siberian settlement, which was founded as a logging camp and part of the Soviet Union's Gulag prison labour system, Tugach, southeast of Krasnoyarsk, Russia October 30, 2018. Picture taken October 30, 2018. REUTERS/Ilya Naymushin 

Lidia Slepets, 66, resident of a Siberian settlement founded as a logging camp and part of the Soviet Union's Gulag prison labour system, shows a photograph of her parents while posing for a picture at her house in Tugach southeast of Krasnoyarsk, Russia October 30, 2018. The photograph shows Lidia's father, a former inmate of the Kraslag prison camp Gerasim Bersenyov (L), who married Anastasia Gaidaichuk (R), then a widow of a camp guard. Picture taken October 30, 2018. REUTERS/Ilya Naymushin 

A British Blue cat is lit up by sunlight diffracted through an aquarium at an apartment in the Siberian city of Krasnoyarsk, Russia July 8, 2018. REUTERS/Ilya Naymushin TPX IMAGES OF THE DAY 

A British Blue cat is lit up by sunlight diffracted through an aquarium at an apartment in the Siberian city of Krasnoyarsk, Russia July 8, 2018. REUTERS/Ilya Naymushin TPX IMAGES OF THE DAY 

A British Blue cat is lit up by sunlight diffracred through an aquarium at an apartment in the Siberian city of Krasnoyarsk, Russia July 8, 2018. REUTERS/Ilya Naymushin 

Children with their parents march during the Victory Day celebrations, marking the 73rd anniversary of the victory over Nazi Germany in World War Two, in the Siberian town of Divnogorsk, Russia May 9, 2018. REUTERS/Ilya Naymushin 

Children with their parents march during the Victory Day celebrations, marking the 73rd anniversary of the victory over Nazi Germany in World War Two, in the Siberian town of Divnogorsk, Russia May 9, 2018. REUTERS/Ilya Naymushin 

Children with their parents march during the Victory Day celebrations, marking the 73rd anniversary of the victory over Nazi Germany in World War Two, in the Siberian town of Divnogorsk, Russia May 9, 2018. REUTERS/Ilya Naymushin 

Veterans attend the Victory Day celebrations, marking the 73rd anniversary of the victory over Nazi Germany in World War Two, in the Siberian city of Barnaul, Russia May 9, 2018. REUTERS/Andrei Kasprishin 

People place flowers at the Memorial of Glory during the Victory Day celebrations, marking the 73rd anniversary of the victory over Nazi Germany in World War Two, in the Siberian city of Barnaul, Russia May 9, 2018. REUTERS /Andrei Kasprishin 

People carry pictures of World War Two soldiers as they take part in the Immortal Regiment march during the Victory Day celebrations, marking the 73rd anniversary of the victory over Nazi Germany in World War Two, in the Siberian city of Barnaul, Russia May 9, 2018. REUTERS/Andrei Kasprishin 

Georgy Sobolev, the technical director of the company which owns the Kemerovo confectionery company, stands inside the defendants' cage as he attends a hearing on his detention in the case of the shopping mall fire at a court in the Siberian city of Kemerovo, Russia March 27, 2018. REUTERS/Polina Ivanova TPX IMAGES OF THE DAY 

Georgy Sobolev, the technical director of the company which owns the Kemerovo confectionery company, stands inside the defendants' cage as he attends a hearing on his detention in the case of the shopping mall fire at a court in the Siberian city of Kemerovo, Russia March 27, 2018. REUTERS/Polina Ivanova 

Georgy Sobolev, the technical director of the company which owns the Kemerovo confectionery company, sits inside the defendants' cage as he attends a hearing on his detention in the case of the shopping mall fire at a court in the Siberian city of Kemerovo, Russia March 27, 2018. REUTERS/Polina Ivanova 

A Siberian cat reacts towards a judge during a competition at the 73rd International Cat Shows organised by the Malta Feline Guardians Club at SmartCity Malta outside Kalkara, Malta, February 4, 2018. REUTERS/Darrin Zammit Lupi 

A Siberian cat is stroked by a judge during a competition at the 73rd International Cat Shows organised by the Malta Feline Guardians Club at SmartCity Malta outside Kalkara, Malta, February 4, 2018. REUTERS/Darrin Zammit Lupi