Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, is seen during a farewell ceremony at the Marghazar Zoo in Islamabad, Pakistan November 23, 2020. REUTERS/Saiyna Bashir TPX IMAGES OF THE DAY

Artists perform during a farewell ceremony for Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, at the Marghazar Zoo in Islamabad, Pakistan November 23, 2020. REUTERS/Saiyna Bashir

A singer performs during a farewell ceremony for Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, at the Marghazar Zoo in Islamabad, Pakistan November 23, 2020. REUTERS/Saiyna Bashir

Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, is seen beside a crate during a farewell ceremony at the Marghazar Zoo in Islamabad, Pakistan November 23, 2020. REUTERS/Saiyna Bashir

A caretaker feeds Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, during a farewell ceremony at the Marghazar Zoo in Islamabad, Pakistan November 23, 2020. REUTERS/Saiyna Bashir

Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, is seen during a farewell ceremony at the Marghazar Zoo in Islamabad, Pakistan November 23, 2020. REUTERS/Saiyna Bashir

Amir Khalil, head of project development at FOUR PAWS International, listens to a question from a journalist (not pictured) as Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, is seen in the background during a farewell ceremony at the Marghazar Zoo in Islamabad, Pakistan November 23, 2020. REUTERS/Saiyna Bashir

Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, is seen during a farewell ceremony at the Marghazar Zoo in Islamabad, Pakistan November 23, 2020. REUTERS/Saiyna Bashir

Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, is seen during a farewell ceremony at the Marghazar Zoo in Islamabad, Pakistan November 23, 2020. REUTERS/Saiyna Bashir

Visitors wearing face masks walk by the Dumbo the Flying Elephant ride at Hong Kong Disneyland Resort following the coronavirus disease (COVID-19) outbreak in Hong Kong, China November 20, 2020. REUTERS/Lam Yik

Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, is seen during a crate training at the Marghazar Zoo in Islamabad, Pakistan November 12, 2020. REUTERS/Saiyna Bashir

Amir Khalil, head of project development at FOUR PAWS International, feeds Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, during a crate training at the Marghazar Zoo in Islamabad, Pakistan November 12, 2020. REUTERS/Saiyna Bashir

Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, is seen during a crate training at the Marghazar Zoo in Islamabad, Pakistan November 12, 2020. REUTERS/Saiyna Bashir

Amir Khalil, head of project development at FOUR PAWS International and Ingo Schmiedinger trainer sedate Kaavan, an elephant waiting to be transported to a sanctuary in Cambodia, during a crate training at the Marghazar Zoo in Islamabad, Pakistan November 12, 2020. REUTERS/Saiyna Bashir

People look at an Asian elephant in its enclosure at LA Zoo in Los Angeles, California, U.S., October 28, 2020. Picture taken October 28, 2020. REUTERS/Mario Anzuoni

An Asian elephant is pictured in its enclosure at LA Zoo in Los Angeles, California, U.S., October 28, 2020. Picture taken October 28, 2020. REUTERS/Mario Anzuoni

People look at an Asian elephant in its enclosure at LA Zoo in Los Angeles, California, U.S., October 28, 2020. Picture taken October 28, 2020. REUTERS/Mario Anzuoni

An elephant eats a pumpkin during Halloween celebrations at the zoo in Kyiv, Ukraine October 27, 2020. REUTERS/Valentyn Ogirenko

An elephant eats a pumpkin during Halloween celebrations at the zoo in Kyiv, Ukraine October 27, 2020. REUTERS/Valentyn Ogirenko

A zookeeper feeds an elephant while preparing for the upcoming reopening of the metropolitan zoo under a new visits protocol, as the spread of coronavirus disease (COVID-19) continues in Santiago, Chile September 24, 2020. REUTERS/Ivan Alvarado

A zookeeper checks an elephant while the metropolitan zoo prepares for the upcoming reopening under a new visits protocol, as the spread of coronavirus disease (COVID-19) continues in Santiago, Chile September 24, 2020. REUTERS/Ivan Alvarado

An elephant is seen inside its enclosure as the metropolitan zoo prepares for the upcoming reopening under a new visits protocol, as the spread of coronavirus disease (COVID-19) continues in Santiago, Chile September 24, 2020. REUTERS/Ivan Alvarado

A zookeeper cleans an elephant foot as the metropolitan zoo prepares for the upcoming reopening under a new visits protocol, as the spread of coronavirus disease (COVID-19) continues in Santiago, Chile September 24, 2020. REUTERS/Ivan Alvarado

Amir Khalil, head of project development at FOUR PAWS International, (R) and Frank Goeritz, head of the veterinary service at Leibniz Institute for zoo and wildlife research in Berlin, take measurements of Kaavan, an elephant at the Marghazar Zoo in Islamabad, Pakistan, September 4, 2020. REUTERS/Saiyna Bashir

Amir Khalil, head of project development at FOUR PAWS International, sedates Kaavan, an elephant at the Marghazar Zoo in Islamabad, Pakistan, September 4, 2020. REUTERS/Saiyna Bashir

Amir Khalil, head of project development at FOUR PAWS International, sedates Kaavan, an elephant at the Marghazar Zoo in Islamabad, Pakistan, September 4, 2020. REUTERS/Saiyna Bashir

Frank Goeritz (L), head of the veterinary service at Leibniz Institute for zoo and wildlife research in Berlin, and Amir Khalil, head of project development at FOUR PAWS International, take blood sample of Kaavan, an elephant at the Marghazar Zoo in Islamabad, Pakistan, September 4, 2020. REUTERS/Saiyna Bashir

Kavaan the elephant stands at his enclosure at the Marghazar Zoo in Islamabad, Pakistan, September 4, 2020. REUTERS/Saiyna Bashir

Amir Khalil, head of project development at FOUR PAWS International, (R) and Frank Goeritz, head of the veterinary service at Leibniz Institute for zoo and wildlife research in Berlin, use an anti-wound spay after drawing blood sample of Kaavan, an elephant at the Marghazar Zoo in Islamabad, Pakistan, September 4, 2020. REUTERS/Saiyna Bashir

Amir Khalil, head of project development at FOUR PAWS International, sedates Kaavan, an elephant at the Marghazar Zoo in Islamabad, Pakistan, September 4, 2020. REUTERS/Saiyna Bashir

Frank Goeritz (L), head of the veterinary service at Leibniz Institute for zoo and wildlife research in Berlin, and Amir Khalil, head of project development at FOUR PAWS International, take blood sample of Kaavan, an elephant at the Marghazar Zoo in Islamabad, Pakistan, September 4, 2020. REUTERS/Saiyna Bashir

Amir Khalil, head of project development at FOUR PAWS International, walks beside Kaavan, an elephant at the Marghazar Zoo in Islamabad, Pakistan, September 4, 2020. REUTERS/Saiyna Bashir

Kavaan the elephant stands at his enclosure at the Marghazar Zoo in Islamabad, Pakistan, September 4, 2020. REUTERS/Saiyna Bashir

A decorated elephant is seen during the annual Perahera (street pageant) at Kotte Raja Maha Viharaya Buddhist temple in Colombo, Sri Lanka, August 29, 2020. REUTERS/Dinuka Liyanawatte

Elephants are seen at Wildlife Friends Foundation Thailand (WFFT) sanctuary, that's affected by a lack of income from the absence of visitors due to the COVID-19 pandemic in Phetchaburi Province, Thailand, August 18, 2020. Picture taken August 18, 2020. REUTERS/Jiraporn Kuhakan

An elephant walks at Wildlife Friends Foundation Thailand (WFFT) sanctuary, that's affected by a lack of income from the absence of visitors due to the COVID-19 pandemic in Phetchaburi Province, Thailand, August 18, 2020. Picture taken August 18, 2020. REUTERS/Jiraporn Kuhakan

Mahouts wearing protective masks bathe an elephant at a confinement area at Saigon Zoo and Botanical Gardens, which is facing dwindling visitor numbers due to the coronavirus disease (COVID-19), in Ho Chi Minh, Vietnam August 19, 2020. Picture taken August 19, 2020. REUTERS/Yen Duong

A mahout stands between elephants at their confinement area at Saigon Zoo and Botanical Gardens, which is facing dwindling visitor numbers due to the coronavirus disease (COVID-19), in Ho Chi Minh, Vietnam August 19, 2020. Picture taken August 19, 2020. REUTERS/Yen Duong

Mahouts wearing protective masks gather beside an elephant at a confinement area at Saigon Zoo and Botanical Gardens, which is facing dwindling visitor numbers due to the coronavirus disease (COVID-19), in Ho Chi Minh, Vietnam, August 19, 2020. Picture taken August 19, 2020. REUTERS/Yen Duong

A mahout wearing a protective mask walks between elephants at their confinement area at Saigon Zoo and Botanical Gardens, which is facing dwindling visitor numbers due to the coronavirus disease (COVID-19), in Ho Chi Minh, Vietnam August 19, 2020. Picture taken August 19, 2020. REUTERS/Yen Duong

Elephants graze at Amboseli National park, Kenya August 8, 2020. Picture taken August 8, 2020. REUTERS/Njeri Mwangi

Elephants graze at the Amboseli National park, Kenya August 8, 2020. Picture taken August 8, 2020. REUTERS/Njeri Mwangi

An elephant walks near a patrol vehicle of Team Lioness, an all-female Kenyan ranger unit, at the Amboseli National park, Kenya August 8, 2020. Picture taken August 8, 2020. REUTERS/Njeri Mwangi

An elephant is seen at Rome Zoo during the hot weather in Rome, Italy, August 13, 2020. REUTERS/Yara Nardi

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is touched by its mother's trunk at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

African elephant calves, which were born at Africam Safari zoo as part of its breeding programme, are seen with their mothers at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

African elephant calves, which were born at Africam Safari zoo as part of its breeding programme, are seen with their mothers at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

African elephant calves, which were born at Africam Safari zoo as part of its breeding programme, are seen at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

African elephant calves, which were born at Africam Safari zoo as part of its breeding programme, are seen at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

Veterinary staff pour water on a tranquillised elephant to wake up after it was fitted with a transmitter on World Elephant Day, in the Amboseli National Park, Kenya, August 12, 2020. REUTERS/Baz Ratner

A veterinary staff member waits next to a tranquillised elephant to wake up after it was fitted with a transmitter on World Elephant Day, in the Amboseli National Park, Kenya, August 12, 2020. REUTERS/Baz Ratner TPX IMAGES OF THE DAY

A ranger of Kenya Wildlife Service (KWS) patrols during a ceremony marking World Elephant Day in the Amboseli National Park, Kenya, August 12, 2020. REUTERS/Baz Ratner

Veterinary staff wait next to a tranquillised Elephant to wake up after it was fitted with a transmitter on World Elephant Day, in the Amboseli National Park, Kenya, August 12, 2020. REUTERS/Baz Ratner