Veterinarian Walid Tandira operates on a cat at Al Rawasy Veterinary Clinic in Benghazi, Libya January 20, 2022. Picture taken January 20, 2022 REUTERS/Esam Omran Al-Fetori 

A Kenya Wildlife Service (KWS) veterinary takes blood samples of a tranquillised elephant during a translocation exercise to Ithumba Camp in Tsavo East National Park, in Solio Ranch in Nyeri County, Kenya February 21, 2018. REUTERS/Thomas Mukoya 

Kenya Wildlife Services veterinarians take blood samples of a tranquilised 5-year-old lioness named Nyala as they set up a radio collar on her neck to track her pride's movements at the Nairobi National Park near Nairobi, Kenya January 23, 2017. REUTERS/Thomas Mukoya 

Veterinarian Kwon Beom-suk (L) examines a dog at his animal clinic in Seoul, South Korea, July 6, 2016. Picture taken on July 6, 2016. REUTERS/Kim Hong-Ji 

Veterinarian Kwon Beom-suk examines a dog at his animal clinic in Seoul, South Korea, July 6, 2016. Picture taken on July 6, 2016. REUTERS/Kim Hong-Ji 

Veterinarian Kwon Beom-suk pets a dog at his animal clinic in Seoul, South Korea, July 6, 2016. Picture taken on July 6, 2016. REUTERS/Kim Hong-Ji 

Veterinarian Kwon Beom-suk examines a dog at his animal clinic in Seoul, South Korea, July 6, 2016. Picture taken on July 6, 2016. REUTERS/Kim Hong-Ji 

Veterinarian Ewerton Luis de Lima holds a white Bengal tiger cub born in captivity during a press presentation at Huachipa's private zoo in Lima, Peru, March 16, 2016. REUTERS/Mariana Bazo 

Veterinarian Ewerton Luis de Lima holds a white Bengal tiger cub born in captivity during a press presentation at Huachipa's private zoo in Lima, Peru, March 16, 2016. REUTERS/Mariana Bazo 

Veterinarians Ewerton Luis de Lima and Lizzie Ortiz hold a white Bengal tiger cub born in captivity during a press presentation at Huachipa's private zoo in Lima, Peru, March 16, 2016. REUTERS/Mariana Bazo 

Veterinarian Ewerton Luis de Lima weights a white Bengal tiger cub born in captivity during a press presentation at Huachipa's private zoo in Lima, Peru, March 16, 2016. REUTERS/Mariana Bazo 

Veterinarians weight a white Bengal tiger cub born in captivity during a press presentation at Huachipa's private zoo in Lima, Peru, March 16, 2016. REUTERS/Mariana Bazo 

Veterinarians check a white Bengal tiger cub born in captivity during a press presentation at Huachipa's private zoo in Lima, Peru, March 16, 2016. REUTERS/Mariana Bazo TPX IMAGES OF THE DAY

Kenya Wildlife Service and Save The Elephants staff stand next to an elephant as they undertake the collaring of ten elephants ranging near the Standard Gauge Railway to fit them with advanced satellite radio tracking collars in Tsavo National Park, Kenya March 15, 2016. REUTERS/Goran Tomasevic 

Kenya Wildlife Service and Save The Elephants staff stand next to an elephant as they undertake the collaring of ten elephants ranging near the Standard Gauge Railway to fit them with advanced satellite radio tracking collars in Tsavo National Park, Kenya March 15, 2016. REUTERS/Goran Tomasevic 

Kenya Wildlife Service and Save The Elephants staff push an elephant as they undertake the collaring of ten elephants ranging near the Standard Gauge Railway to fit them with advanced satellite radio tracking collars in Tsavo National Park, Kenya March 15, 2016. REUTERS/Goran Tomasevic 

Kenya Wildlife Service and Save The Elephants staff stand next to an elephant as they undertake the collaring of ten elephants ranging near the Standard Gauge Railway to fit them with advanced satellite radio tracking collars in Tsavo National Park, Kenya March 15, 2016. REUTERS/Goran Tomasevic 

Kenya Wildlife Service and Save The Elephants staff stand next to an elephant as they undertake the collaring of ten elephants ranging near the Standard Gauge Railway to fit them with advanced satellite radio tracking collars in Tsavo National Park, Kenya March 15, 2016. REUTERS/Goran Tomasevic TPX IMAGES OF THE DAY

A worker holds rhino horns after it was dehorned in an effort to deter the poaching of one of the world's endangered species, at a farm outside Klerksdorp, in the north west province, South Africa,February 24, 2016.REUTERS/Siphiwe Sibeko 

A tranquillised black rhino is dehorned in an effort to deter the poaching of one of the world's endangered species, at a farm outside Klerksdorp, in the north west province, South Africa, February 24, 2016.REUTERS/Siphiwe Sibeko 

A tranquillised black rhino falls to the ground as workers attempt to help it before dehorning it in an effort to deter the poaching of one of the world's endangered species, at a farm outside Klerksdorp, in the north west province, South Africa,February 24, 2016.REUTERS/Siphiwe Sibeko 

A veterinarian inspects a tranquillised black rhino after it was dehorned in an effort to deter the poaching of one of the world's endangered species, at a farm outside Klerksdorp, in the north west province, South Africa,February 24, 2016.REUTERS/Siphiwe Sibeko 

A tranquillised black rhino is dehorned in an effort to deter the poaching of one of the world's endangered species, at a farm outside Klerksdorp, in the north west province, South Africa, February 24, 2016.REUTERS/Siphiwe Sibeko TPX IMAGES OF THE DAY 

Workers attempt to bring a tranquillised black rhino to the ground before dehorning in an effort to deter the poaching of one of the world's endangered species, at a farm outside Klerksdorp, in the north west province, South Africa, February 24, 2016.REUTERS/Siphiwe Sibeko TPX IMAGES OF THE DAY 

Britain's Queen Elizabeth meets veterinary students, as they stand around a dummy of a dog, at The University of Surrey's new School of Veterinary Medicine, Guildford, Britain, October 15, 2015. REUTERS/Peter Nicholls 

Britain's Queen Elizabeth meets veterinary students at The University of Surrey's new School of Veterinary Medicine, Guildford, Britain, October 15, 2015. REUTERS/Peter Nicholls 

Britain's Queen Elizabeth meets veterinary students at The University of Surrey's new School of Veterinary Medicine, Guildford, Britain, October 15, 2015. REUTERS/Peter Nicholls 

A kitten with whiskers damaged by heat is inspected by a veterinarian at a property evacuated and partially burnt by the Valley Fire in Hidden Valley Lake, California September 15, 2015. The toll of property loss from the deadly Northern California wildfire has climbed to at least 585 homes and hundreds of other structures destroyed, the California Department of Forestry and Fire Protection reported on Tuesday. REUTERS/David Ryder TPX IMAGES OF THE DAY

Veterinarian John Madigan surveys a home burnt by the Valley Fire while checking for animals in need in Hidden Valley Lake, California September 15, 2015. The toll of property losses from a deadly Northern California wildfire, the most destructive this year in the western United States, climbed on Tuesday to at least 585 homes along with hundreds of other structures which have gone up in flames. REUTERS/David Ryder 

Veterinarian John Madigan surveys a home burnt by the Valley Fire while checking for animals in need in Hidden Valley Lake, California September 15, 2015. The toll of property loss from the deadly Northern California wildfire has climbed to at least 585 homes and hundreds of other structures destroyed, the California Department of Forestry and Fire Protection reported on Tuesday. REUTERS/David Ryder 

Volunteer veterinarians Patricia Andrade (R) and John Madigan (L) inspect kittens at a property evacuated and partially burnt by the Valley Fire in Hidden Valley Lake, California September 15, 2015. The toll of property loss from the deadly Northern California wildfire has climbed to at least 585 homes and hundreds of other structures destroyed, the California Department of Forestry and Fire Protection reported on Tuesday. REUTERS/David Ryder 

Volunteer veterinarian Patricia Andrade inspects kittens with another veterinarian at a property evacuated and partially burnt by the Valley Fire in Hidden Valley Lake, California September 15, 2015. The toll of property losses from the deadly Northern California wildfire, the most destructive this year in the western United States, climbed on Tuesday to at least 585 homes along with hundreds of other structures which have gone up in flames. REUTERS/David Ryder 

Thai veterinarians collect the fingerprints of an orangutan during a health examination at Kao Pratubchang Conservation Centre in Ratchaburi Thailand, August 27, 2015. Thai veterinarians from the Department of National Park Wildlife, and Plant Conservation conducted a health check of 14 orangutans for preparation for the repatriation to their country of origin, Indonesia. Most of Sumatran and Borneo Kalimantan orangutans, were confiscated from entertainment businesses in Phuket province since 2008. Authorities said the orangutans are being examined to ensure they are free from diseases such as Rabies, Foot and Mouth disease, Tuberculosis, Hepatitis and Herpes. Thai officials said the orangutans are expected to return to Indonesia in September. REUTERS/Athit Perawongmetha 

Thai veterinarians collect the fingerprints of an orangutan during a health examination at Kao Pratubchang Conservation Centre in Ratchaburi, Thailand, August 27, 2015. Thai veterinarians from the Department of National Park Wildlife, and Plant Conservation conducted a health check of 14 orangutans for preparation for the repatriation to their country of origin, Indonesia. Most of Sumatran and Borneo Kalimantan orangutans, were confiscated from entertainment businesses in Phuket province since 2008. Authorities said the orangutans are being examined to ensure they are free from diseases such as Rabies, Foot and Mouth disease, Tuberculosis, Hepatitis and Herpes. Thai officials said the orangutans are expected to return to Indonesia in September. REUTERS/Athit Perawongmetha 

Thai veterinarians and wildlife officers collect blood sample during a health examination at Kao Pratubchang Conservation Centre in Ratchaburi, Thailand, August 27, 2015. Thai veterinarians from the Department of National Park Wildlife, and Plant Conservation conducted a health check of 14 orangutans for preparation for the repatriation to their country of origin, Indonesia. Most of Sumatran and Borneo Kalimantan orangutans, were confiscated from entertainment businesses in Phuket province since 2008. Authorities said the orangutans are being examined to ensure they are free from diseases such as Rabies, Foot and Mouth disease, Tuberculosis, Hepatitis and Herpes. Thai officials said the orangutans are expected to return to Indonesia in September. REUTERS/Athit Perawongmetha 

Thai veterinarians and wildlife officers move an orangutan onto a stretcher during a health examination at Kao Pratubchang Conservation Centre in Ratchaburi, Thailand, August 27, 2015. Thai veterinarians from the Department of National Park Wildlife, and Plant Conservation conducted a health check of 14 orangutans for preparation for the repatriation to their country of origin, Indonesia. Most of Sumatran and Borneo Kalimantan orangutans, were confiscated from entertainment businesses in Phuket province since 2008. Authorities said the orangutans are being examined to ensure they are free from diseases such as Rabies, Foot and Mouth disease, Tuberculosis, Hepatitis and Herpes. Thai officials said the orangutans are expected to return to Indonesia in September. REUTERS/Athit Perawongmetha 

Thai veterinarians collect blood sample from an orangutan during a health examination at Kao Pratubchang Conservation Centre in Ratchaburi, Thailand, August 27, 2015. Thai veterinarians from the Department of National Park Wildlife, and Plant Conservation conducted a health check of 14 orangutans for preparation for the repatriation to their country of origin, Indonesia. Most of Sumatran and Borneo Kalimantan orangutans, were confiscated from entertainment businesses in Phuket province since 2008. Authorities said the orangutans are being examined to ensure they are free from diseases such as Rabies, Foot and Mouth disease, Tuberculosis, Hepatitis and Herpes. Thai officials said the orangutans are expected to return to Indonesia in September. REUTERS/Athit Perawongmetha 

An orangutan is carried on a stretcher by Thai veterinarians and wildlife officers to a cage after a health examination at Kao Pratubchang Conservation Centre in Ratchaburi, Thailand, August 27, 2015. Thai veterinarians from the Department of National Park Wildlife, and Plant Conservation conducted a health check of 14 orangutans for preparation for the repatriation to their country of origin, Indonesia. Most of Sumatran and Borneo Kalimantan orangutans, were confiscated from entertainment businesses in Phuket province since 2008. Authorities said the orangutans are being examined to ensure they are free from diseases such as Rabies, Foot and Mouth disease, Tuberculosis, Hepatitis and Herpes. Thai officials said the orangutans are expected to return to Indonesia in September. REUTERS/Athit Perawongmetha 

An orangutan is carried on a stretcher by Thai veterinarians and wildlife officers to a cage after a health examination at Kao Pratubchang Conservation Centre in Ratchaburi, Thailand, August 27, 2015. Thai veterinarians from the Department of National Park Wildlife, and Plant Conservation conducted a health check of 14 orangutans for preparation for the repatriation to their country of origin, Indonesia. Most of Sumatran and Borneo Kalimantan orangutans, were confiscated from entertainment businesses in Phuket province since 2008. Authorities said the orangutans are being examined to ensure they are free from diseases such as Rabies, Foot and Mouth disease, Tuberculosis, Hepatitis and Herpes. Thai officials said the orangutans are expected to return to Indonesia in September. REUTERS/Athit Perawongmetha 

An orangutan is carried on a stretcher by Thai veterinarians and wildlife officers to a cage after a health examination at Kao Pratubchang Conservation Centre in Ratchaburi, Thailand, August 27, 2015. Thai veterinarians from the Department of National Park Wildlife, and Plant Conservation conducted a health check of 14 orangutans for preparation for the repatriation to their country of origin, Indonesia. Most of Sumatran and Borneo Kalimantan orangutans, were confiscated from entertainment businesses in Phuket province since 2008. Authorities said the orangutans are being examined to ensure they are free from diseases such as Rabies, Foot and Mouth disease, Tuberculosis, Hepatitis and Herpes. Thai officials said the orangutans are expected to return to Indonesia in September. REUTERS/Athit Perawongmetha 

A Thai veterinarian takes a picture of a 2-year-old orangutan during a health examination at Kao Pratubchang Conservation Centre in Ratchaburi, Thailand, August 27, 2015. Thai veterinarians from the Department of National Park Wildlife, and Plant Conservation conducted a health check of 14 orangutans for preparation for the repatriation to their country of origin, Indonesia. Most of Sumatran and Borneo Kalimantan orangutans, were confiscated from entertainment businesses in Phuket province since 2008. Authorities said the orangutans are being examined to ensure they are free from diseases such as Rabies, Foot and Mouth disease, Tuberculosis, Hepatitis and Herpes. Thai officials said the orangutans are expected to return to Indonesia in September. REUTERS/Athit Perawongmetha TPX IMAGES OF THE DAY

Thai veterinarians collect finger prints of 2-years-old orangutan during a health examination at Kao Pratubchang Conservation Centre in Ratchaburi, Thailand, August 27, 2015. Thai veterinarians from the Department of National Park Wildlife, and Plant Conservation conducted a health check of 14 orangutans for preparation for the repatriation to their country of origin, Indonesia. Most of Sumatran and Borneo Kalimantan orangutans, were confiscated from entertainment businesses in Phuket province since 2008. Authorities said the orangutans are being examined to ensure they are free from diseases such as Rabies, Foot and Mouth disease, Tuberculosis, Hepatitis and Herpes. Thai officials said the orangutans are expected to return to Indonesia in September. REUTERS/Athit Perawongmetha 

A two-year-old orangutan reacts as Thai veterinarians collect blood sample during a health examination at Kao Pratubchang Conservation Centre in Ratchaburi, Thailand, August 27, 2015. Thai veterinarians from the Department of National Park Wildlife, and Plant Conservation conducted a health check of 14 orangutans for preparation for the repatriation to their country of origin, Indonesia. Most of Sumatran and Borneo Kalimantan orangutans, were confiscated from entertainment businesses in Phuket province since 2008. Authorities said the orangutans are being examined to ensure they are free from diseases such as Rabies, Foot and Mouth disease, Tuberculosis, Hepatitis and Herpes. Thai officials said the orangutans are expected to return to Indonesia in September. REUTERS/Athit Perawongmetha 

A Perdiz receives acupuncture treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A Perdiz receives acupuncture treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A Perdiz receives acupuncture treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A Perdiz receives acupuncture treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A blue-throated macaw receives acupuncture and laser therapy treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A blue-throated macaw receives acupuncture and laser therapy treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A blue-throated macaw receives acupuncture and laser therapy treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A blue-throated macaw receives acupuncture and laser therapy treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A llama that has skin tumours receives acupuncture treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A llama that has skin tumours receives laser therapy treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A toucan that has a fractured leg receives electroacupuncture treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A toucan that has a fractured leg receives electroacupuncture treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A toucan that has a fractured leg receives electroacupuncture treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A toucan that has a fractured leg receives a shock wave treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino 

A toucan that has a fractured leg receives electroacupuncture treatment at the veterinary hospital in Brasilia Zoo, July 30, 2015. The zoo's veterinary hospital uses acupuncture and laser therapy to improve the health and well-being of animals with chronic diseases. REUTERS/Ueslei Marcelino TPX IMAGES OF THE DAY

An eight-year-old lion named Samuni is brought to a veterinary clinic before undergoing a surgical procedure to remove a tumour from his abdomen at the Ramat Gan Safari Zoo, near Tel Aviv, Israel, July 29, 2015. REUTERS/Baz Ratner

Zoo staff and members of a veterinary team prepare an eight-year-old lion named Samuni for a surgical procedure to remove a tumour from his abdomen at the Ramat Gan Safari Zoo, near Tel Aviv, Israel, July 29, 2015. REUTERS/Baz Ratner