Orangutans, which were seized from the Thailand-Malaysia border 3 years ago, are pictured in cages before a transfer to Indonesia, at the airport in Bangkok, Thailand December 17,2020. REUTERS/Soe Zeya Tun

A person offers a banana to an orangutan, which was seized from the Thailand-Malaysia border 3 years ago, before it is being transferred to Indonesia, at the airport in Bangkok, Thailand December 17,2020. REUTERS/Soe Zeya Tun

An orangutan, which was seized from the Thailand-Malaysia border 3 years ago, is pictured in a cage before it is being transferred to Indonesia, at the airport in Bangkok, Thailand December 17,2020. REUTERS/Soe Zeya Tun

A hand of an orangutan, seized from the Thailand-Malaysia border 3 years ago, is pictured in a cage before it is being transferred to Indonesia, at the airport in Bangkok, Thailand December 17,2020. REUTERS/Soe Zeya Tun

An orangutan, which was seized from the Thailand-Malaysia border 3 years ago, looks from a cage before it is being transferred to Indonesia, at the airport in Bangkok, Thailand December 17,2020. REUTERS/Soe Zeya Tun TPX IMAGES OF THE DAY

An orangutan, which was seized from the Thailand-Malaysia border 3 years ago, looks from a cage before it is being transferred to Indonesia, at the airport in Bangkok, Thailand December 17,2020. REUTERS/Soe Zeya Tun

An orangutan, which was seized from the Thailand-Malaysia border 3 years ago, looks from a cage before it is being transferred to Indonesia, at the airport in Bangkok, Thailand December 17,2020. REUTERS/Soe Zeya Tun TPX IMAGES OF THE DAY

An orangutan, which was seized from the Thailand-Malaysia border 3 years ago, looks from a cage before it is being transferred to Indonesia, at the airport in Bangkok, Thailand December 17,2020. REUTERS/Soe Zeya Tun

An orangutan, which was seized from the Thailand-Malaysia border 3 years ago, looks from a cage before it is being transferred to Indonesia, at the airport in Bangkok, Thailand December 17,2020. REUTERS/Soe Zeya Tun

Uijan, the father of eleven-day-old baby orangutan of Sumatra, named Mathai, is pictured at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Uijan, the father of eleven-day-old baby orangutan of Sumatra, named Mathai, is pictured at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Eleven-day-old baby orangutan of Sumatra, named Mathai is pictured with its mother Sari at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Eleven-day-old baby orangutan of Sumatra, named Mathai is pictured with its mother Sari at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Eleven-day-old baby orangutan of Sumatra, named Mathai is pictured with its mother Sari at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Eleven-day-old baby orangutan of Sumatra, named Mathai is pictured with its mother Sari at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Eleven-day-old baby orangutan of Sumatra, named Mathai is pictured with its mother Sari at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Eleven-day-old baby orangutan of Sumatra, named Mathai is pictured with its mother Sari at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Eleven-day-old baby orangutan of Sumatra, named Mathai is pictured with its mother Sari at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Eleven-day-old baby orangutan of Sumatra, named Mathai is pictured with its mother Sari at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Eleven-day-old baby orangutan of Sumatra, named Mathai is pictured with its mother Sari at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Eleven-day-old baby orangutan of Sumatra, named Mathai is pictured with its mother Sari at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Eleven-day-old baby orangutan of Sumatra, named Mathai is pictured with its mother Sari at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman

Eleven-day-old baby orangutan of Sumatra named Mathai is held by its mother Sari at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium December 9, 2020. REUTERS/Yves Herman TPX IMAGES OF THE DAY

Ole, a young orangutan, plays in his enclosure at the Zoo on a rainy day in Kaliningrad, Russia September 17, 2020. REUTERS/Vitaly Nevar

Ole, a young orangutan, plays in his enclosure at the Zoo on a rainy day in Kaliningrad, Russia September 17, 2020. REUTERS/Vitaly Nevar TPX IMAGES OF THE DAY

Ole, a young orangutan, plays in his enclosure at the Zoo on a rainy day in Kaliningrad, Russia September 17, 2020. REUTERS/Vitaly Nevar

Lucy the orangutan and visitor Amy Russian greet each other with mirrored hands, while Helen Gonzales takes their picture, as the National Zoo reopens for socially-distanced patrons for the first time since the start of the coronavirus disease (COVID-19) outbreak in Washington, U.S. July 24, 2020. REUTERS/Jonathan Ernst

Lucy the orangutan waits for visitors as the National Zoo reopens for socially-distanced patrons for the first time since the start of the coronavirus disease (COVID-19) outbreak in Washington, U.S. July 24, 2020. REUTERS/Jonathan Ernst

Lucy the orangutan and visitor Amy Russian greet each other with mirrored hands as the National Zoo reopens for socially-distanced patrons for the first time since the start of the coronavirus disease (COVID-19) outbreak in Washington, U.S. July 24, 2020. REUTERS/Jonathan Ernst

Lucy the orangutan and visitor Amy Russian greet each other with mirrored hands as the National Zoo reopens for socially-distanced patrons for the first time since the start of the coronavirus disease (COVID-19) outbreak in Washington, U.S. July 24, 2020. REUTERS/Jonathan Ernst

Ojon, a 24-year-old Sumatran orangutan, is seen at a zoo amid the coronavirus disease (COVID-19) outbreak in Bandung, West Java Province, Indonesia, May 18, 2020. Picture taken May 18, 2020. REUTERS/Ajeng Dinar Ulfiana

'Penny the Orangutan' artwork in Chiswick with a face mask, following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

'Penny the Orangutan' artwork in Chiswick with a face mask, following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

'Penny the Orangutan' artwork in Chiswick with a face mask, following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

'Penny the Orangutan' artwork in Chiswick with a face mask, following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

An orangutan is seen inside an enclosure at the Moscow Zoo in the capital Moscow, Russia February 14, 2020. REUTERS/Maxim Shemetov

An orangutan is seen inside an enclosure at the Moscow Zoo in the capital Moscow, Russia February 14, 2020. REUTERS/Maxim Shemetov

A baby orangutan approaches a treat on Valentine's Day at the Moscow Zoo in the capital Moscow, Russia February 14, 2020. REUTERS/Maxim Shemetov TPX IMAGES OF THE DAY

Orangutans gather as smoke covers Salat Island which is used by Borneo Orangutan Survival Foundation (BOSF) as a pre-release island for orangutans, in Pulang Pisau regency near Palangka Raya, Central Kalimantan province, Indonesia, September 15, 2019. REUTERS/Willy Kurniawan/File Photo SEARCH "GLOBAL POY" FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2019 PACKAGES. TPX IMAGES OF THE DAY.

An orangutan is pictured at a pre-release island used by Borneo Orangutan Survival Foundation (BOSF) at Sei Gohong village in Palangka Raya, Central Kalimantan province, Indonesia, September 16, 2019. Picture taken September 16, 2019. REUTERS/Willy Kurniawan TPX IMAGES OF THE DAY

An orangutan hangs on a tree at a pre-release island used by Borneo Orangutan Survival Foundation (BOSF) at Sei Gohong village in Palangka Raya, Central Kalimantan province, Indonesia, October 3, 2019. REUTERS/Willy Kurniawan

An orangutan is pictured at an pre-release island for orangutans by Borneo Orangutan Survival Foundation (BOSF) at Sei Gohong village in Palangka Raya, Central Kalimantan province, Indonesia, October 3, 2019. REUTERS/Willy Kurniawan

Orangutans are pictured at a feeding platform of a pre-release island used by Borneo Orangutan Survival Foundation (BOSF) at Sei Gohong village in Palangka Raya, Central Kalimantan province, Indonesia, October 3, 2019. REUTERS/Willy Kurniawan

An orangutan is pictured at a pre-release island used by Borneo Orangutan Survival Foundation (BOSF) at Sei Gohong village in Palangka Raya, Central Kalimantan province, Indonesia, October 3, 2019. REUTERS/Willy Kurniawan

Orangutans are pictured at a pre-release island used by Borneo Orangutan Survival Foundation (BOSF) at Sei Gohong village in Palangka Raya, Central Kalimantan province, Indonesia, October 3, 2019. REUTERS/Willy Kurniawan

An orangutan is pictured at a pre-release island used by Borneo Orangutan Survival Foundation (BOSF) at Sei Gohong village in Palangka Raya, Central Kalimantan province, Indonesia, October 3, 2019. REUTERS/Willy Kurniawan

Orangutans gather as smoke covers Salat Island, which is used by Borneo Orangutan Survival Foundation (BOSF) as a pre-release island for orangutans, in Pulang Pisau regency near Palangka Raya, Central Kalimantan province, Indonesia, September 15, 2019. REUTERS/Willy Kurniawan SEARCH "KURNIAWAN RAYA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY.

An orangutan sits as smoke covers Salat Island which is used by Borneo Orangutan Survival Foundation (BOSF) as a pre-release island for orangutan, in Pulang Pisau regency near Palangka Raya, Central Kalimantan province, Indonesia, September 15, 2019. REUTERS/Willy Kurniawan SEARCH "KURNIAWAN RAYA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Cages are pictured at Orangutan Rehabilitation and Reintroduction site of Borneo Orangutan Survival Foundationn (BOSF) Samboja Lestari in Kutai Kertanegara regency, East Kalimantan province, Indonesia, August 29, 2019. Picture taken August 29, 2019. REUTERS/Willy Kurniawan

Fani, a 15-year-old orangutan hangs on a wood stick at Orangutan Rehabilitation and Reintroduction site of Borneo Orangutan Survival Foundationn (BOSF) Samboja Lestari in Kutai Kertanegara regency, East Kalimantan province, Indonesia, August 29, 2019. Picture taken August 29, 2019. REUTERS/Willy Kurniawan

Three-year-old orangutan of Sumatra, Berani is pictured at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman

Three-year-old orangutan of Sumatra, Berani, and his father Ujilan, are pictured at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman

Three-year-old orangutan of Sumatra, Berani, is pictured at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman

An orangutan from Sumatra named Sari is pictured at the Pairi Daiza wildlife park, a zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman

Three-year-old orangutan from Sumatra, Berani, is pictured at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman

Three-year-old orangutan from Sumatra, Berani, and his father Ujian, are pictured at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman

Three-year-old orangutan from Sumatra, Berani, is pictured at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman

Three-year-old orangutan from Sumatra, Berani, is pictured at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman

Three-year-old orangutan from Sumatra, Berani, is pictured at the Pairi Daiza wildlife park, zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman