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 

A white lion cub walks inside an enclosure at Mostaland park in Mostaganem, Algeria December 8, 2022. REUTERS/Ramzi Boudina 

Africa, a jaguar mother of a 4-month-old cub, is seen in her enclosure at the Chapultepec Zoo, in Mexico City, Mexico December 5, 2022. REUTERS/Raquel Cunha 

Loki, a black jaguar father of a 4-month-old cub, is seen in his enclosure at the Chapultepec Zoo, in Mexico City, Mexico December 5, 2022. REUTERS/Raquel Cunha 

A black jaguar is seen in its enclosure at the Chapultepec Zoo, in Mexico City, Mexico December 5, 2022. REUTERS/Raquel Cunha 

Maine Coon cat is seen during international pet industry fair Zoo Expo 2022 in Riga, Latvia November 12, 2022. REUTERS/Ints Kalnins 

A newly born endangered Persian leopard cub walks near its mother Banu inside their enclosure at Dvur Kralove Zoo in Dvur Kralove nad Labem, Czech Republic, October 24, 2022. REUTERS/David W Cerny 

A newly born endangered Persian leopard cub walks near its mother Banu inside their enclosure at Dvur Kralove Zoo in Dvur Kralove nad Labem, Czech Republic, October 24, 2022. REUTERS/David W Cerny 

Newly born endangered Persian leopard cubs walk inside their enclosure at Dvur Kralove Zoo in Dvur Kralove nad Labem, Czech Republic, October 24, 2022. REUTERS/David W Cerny 

Newly born Persian leopard cubs rest inside their enclosure at Dvur Kralove Zoo in Dvur Kralove nad Labem, Czech Republic, October 24, 2022. REUTERS/David W Cerny 

A newly born endangered Persian leopard cub walks inside its enclosure at Dvur Kralove Zoo in Dvur Kralove nad Labem, Czech Republic, October 24, 2022. REUTERS/David W Cerny 

A newly born endangered Persian leopard cub walks inside its enclosure at Dvur Kralove Zoo in Dvur Kralove nad Labem, Czech Republic, October 24, 2022. REUTERS/David W Cerny 

A newly-born Central America tapir (Tapirus bairdii) stands next to Colorada, her mother, at their enclosure in Zoo Nicaragua, in Managua, Nicaragua August 8, 2022. REUTERS/Maynor Velenzuela 

A cheetah roams around the Ol Pejeta Conservancy in Nanyuki, Kenya, July 29, 2022. REUTERS/Amr Alfiky 

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 

A panda bear eats a watermelon ice-cream on a bamboo stick during the second heatwave of the year at the Zoo Aquarium in Madrid, Spain, July 13, 2022. REUTERS/Susana Vera 

Jaguar cubs (Panthera onca) stand on their mother at their enclosure as they are presented 55-days after being born at the Zoo Nicaragua, in Managua, Nicaragua July 11, 2022. REUTERS/Maynor Valenzuela 

Jaguar cubs (Panthera onca) sit with their mother at their enclosure as they are presented 55-days after being born at the Zoo Nicaragua, in Managua, Nicaragua July 11, 2022. REUTERS/Maynor Valenzuela 

A lion cub takes its first steps outdoors at Pairi Daiza zoo in Brugelette, Belgium, May 28, 2022. REUTERS/Johanna Geron 

A lion cub takes its first steps outdoors at Pairi Daiza zoo in Brugelette, Belgium, May 28, 2022. REUTERS/Johanna Geron 

Twin lion cubs Albi and Leo take their first steps outdoors at Pairi Daiza zoo in Brugelette, Belgium, May 28, 2022. REUTERS/Johanna Geron 

Twin lion cubs Albi and Leo take their first steps outdoors at Pairi Daiza zoo in Brugelette, Belgium, May 28, 2022. REUTERS/Johanna Geron REFILE - QUALITY REPEAT 

Twin lion cubs Albi and Leo take their first steps outdoors at Pairi Daiza zoo in Brugelette, Belgium, May 28, 2022. REUTERS/Johanna Geron REFILE - QUALITY REPEAT 

Twin lion cubs Albi and Leo take their first steps outdoors at Pairi Daiza zoo in Brugelette, Belgium, May 28, 2022. REUTERS/Johanna Geron TPX IMAGES OF THE DAY REFILE - QUALITY REPEAT 

Twin lion cubs Albi and Leo take their first steps outdoors at Pairi Daiza zoo in Brugelette, Belgium, May 28, 2022. REUTERS/Johanna Geron REFILE - QUALITY REPEAT 

An albino red-necked wallaby stands in its enclosure at the zoo in Decin, Czech Republic, May 18, 2022. REUTERS/David W Cerny 

A newly born albino red-necked wallaby joey is being carried by its mother in their enclosure at the zoo in Decin, Czech Republic, May 18, 2022. REUTERS/David W Cerny 

A newly born albino red-necked wallaby joey eats as it is being carried by its mother in their enclosure at the zoo in Decin, Czech Republic, May 18, 2022. REUTERS/David W Cerny TPX IMAGES OF THE DAY 

A newly born albino red-necked wallaby joey plays with its mother in their enclosure at the zoo in Decin, Czech Republic, May 18, 2022. REUTERS/David W Cerny 

A newly born albino red-necked wallaby joey is being carried by its mother in their enclosure at the zoo in Decin, Czech Republic, May 18, 2022. REUTERS/David W Cerny 

A newly born albino red-necked wallaby joey is being carried by its mother in their enclosure at the zoo in Decin, Czech Republic May 18, 2022. REUTERS/David W Cerny 

A one-eyed female cat, found in a destroyed house in the Ukrainian town of Volnovakha and evacuated by volunteers to Russia amid Ukraine-Russia conflict, sits in the arms of Svetlana, who adopted her, in Moscow, Russia April 9, 2022. Picture taken April 9, 2022. REUTERS/Evgenia Novozhenina TPX IMAGES OF THE DAY 

Punxsutawney Phil's handler A.J. Dereume holds the famous groundhog during the 136th Groundhog Day, at Gobblers Knob in Punxsutawney, Pennsylvania, U.S., February 2, 2022. REUTERS/Alan Freed 

Punxsutawney Phil's handler A.J. Dereume holds the famous groundhog during the 136th Groundhog Day, at Gobblers Knob in Punxsutawney, Pennsylvania, U.S., February 2, 2022. REUTERS/Alan Freed 

Raccoon Fritzi eats at the home of veterinarian Mathilde Laininger in Berlin, Germany, January 27, 2022. She cares for four raccoons that can no longer be released into the wild. Raccoon Fritzi has an Instagram account with ten thousand followers. REUTERS/Hannibal Hanschke 

A veterinarian assistant monitors a cat after a medical procedure at Al Rawasy Veterinary Clinic in Benghazi, Libya January 20, 2022. Picture taken January 20, 2022 REUTERS/Esam Omran Al-Fetori 

A cat waits in its box for a medical examination at Al Rawasy Veterinary Clinic in Benghazi, Libya January 19,2022. Picture taken January 19,2022 REUTERS/Esam Omran Al-Fetori 

Stray cats look on as upcycled mobile shelters made out of old tyres are built to keep them warm during winter in Cairo, Egypt January 13, 2022. Picture taken January 13, 2022. REUTERS/Amr Abdallah Dalsh 

A stray cat looks on in front of upcycled mobile shelters made out of old tyres to keep cats warm during winter in Cairo, Egypt January 13, 2022. Picture taken January 13, 2022. REUTERS/Amr Abdallah Dalsh 

A stray cat looks on next to an upcycled mobile shelter made out of old tyres to keep cats warm during winter in Cairo, Egypt January 13, 2022. Picture taken January 13, 2022. REUTERS/Amr Abdallah Dalsh 

A stray cat reacts as upcycled mobile shelters made out of old tyres are built to keep cats warm during winter in Cairo, Egypt January 13, 2022. Picture taken January 13, 2022. REUTERS/Amr Abdallah Dalsh 

Midas, a four-month-old kitten born with four ears, is pictured at her home in Ankara, Turkey November 19, 2021. REUTERS/Cagla Gurdogan 

Midas, a four-month-old kitten born with four ears, is pictured at her home in Ankara, Turkey November 19, 2021. REUTERS/Cagla Gurdogan 

A cat named Kaala looks out of a cat house in owners Ruvyn and Phoebe Tng's cat cafe-inspired four-room public housing apartment in Singapore August 30, 2021. Picture taken August 30, 2021. REUTERS/Edgar Su 

A stray cat rests in Malcolm's Cat Sanctuary in Asomatos village in the outskirts of Limassol, Cyprus, June 1, 2021. Picture taken June 1, 2021. REUTERS/Yiannis Kourtoglou 

A Red Panda rests on a tree at Manor Wildlife park, which reopened its doors as lockdown restrictions continue to ease, amid the outbreak of the coronavirus disease (COVID-19), in Tenby, Wales, Britain, April 26, 2021. REUTERS/Rebecca Naden 

A meerkat is seen at Manor Wildlife park, which reopened its doors as lockdown restrictions continue to ease, amid the outbreak of the coronavirus disease (COVID-19), in Tenby, Wales, Britain, April 26, 2021. REUTERS/Rebecca Naden 

A Red Panda rests on a tree at Manor Wildlife park, which reopened its doors as lockdown restrictions continue to ease, amid the outbreak of the coronavirus disease (COVID-19), in Tenby, Wales, Britain, April 26, 2021. REUTERS/Rebecca Naden 

A Red Panda in seen on a tree at Manor Wildlife park, which reopened its doors as lockdown restrictions continue to ease, amid the outbreak of the coronavirus disease (COVID-19), in Tenby, Wales, Britain, April 26, 2021. REUTERS/Rebecca Naden 

A young lion plays with a ball at Woburn Safari park before its opening as coronavirus disease (COVID-19) restrictions begin to ease, in Woburn, Britain April 11, 2021. REUTERS/Andrew Boyers 

A lion cub yawns at Woburn Safari park before its opening as coronavirus disease (COVID-19) restrictions begin to ease, in Woburn, Britain April 11, 2021. REUTERS/Andrew Boyers 

Lion cubs play at Woburn Safari park before its opening as coronavirus disease (COVID-19) restrictions begin to ease, in Woburn, Britain April 11, 2021. REUTERS/Andrew Boyers 

A young lion is seen at Woburn Safari park before its opening as coronavirus disease (COVID-19) restrictions begin to ease, in Woburn, Britain April 11, 2021. REUTERS/Andrew Boyers 

Nala, a white lion, roars at a private zoo closed to the public, during the coronavirus disease (COVID-19) pandemic, in Felsolajos, Hungary, March 22, 2021. Picture taken March 22, 2021. REUTERS/Bernadett Szabo 

A grey squirrel eats spring flower buds on a Japanese Maple tree at the National Botanic Gardens in Dublin, Ireland, March 23, 2021. REUTERS/Clodagh Kilcoyne 

A grey squirrel forages for spring flower buds on a Japanese Maple tree at the National Botanic Gardens in Dublin, Ireland, March 23, 2021. REUTERS/Clodagh Kilcoyne 

A grey squirrel forages for spring flower buds on a Japanese Maple tree at the National Botanic Gardens in Dublin, Ireland, March 23, 2021. REUTERS/Clodagh Kilcoyne 

A grey squirrel eats spring flower buds on a Japanese Maple tree at the National Botanic Gardens in Dublin, Ireland, March 23, 2021. REUTERS/Clodagh Kilcoyne