Golden Lion Tamarins are seen in the Atlantic Forest region of Silva Jardim in Rio de Janeiro state, Brazil December 2, 2021. Picture taken December 2, 2021. REUTERS/Pilar Olivares 

An ecological bridge that serves as a corridor for the endangered Golden Lion Tamarin is seen over an interstate highway in Silva Jardim in Rio de Janeiro state, Brazil December 2, 2021. Picture taken December 2, 2021. Picture taken with a drone. REUTERS/Pilar Olivares 

Biologist Andreia Martins observes a Golden Lion Tamarin in the Atlantic Forest region of Silva Jardim in Rio de Janeiro state, Brazil December 2, 2021. Picture taken December 2, 2021. REUTERS/Pilar Olivares 

Golden Lion Tamarins are seen in the Atlantic Forest region of Silva Jardim in Rio de Janeiro state, Brazil December 2, 2021. Picture taken December 2, 2021.REUTERS/Pilar Olivares 

A Golden Lion Tamarin is seen in the Atlantic Forest region of Silva Jardim in Rio de Janeiro state, Brazil December 2, 2021. Picture taken December 2, 2021.REUTERS/Pilar Olivares 

An interstate highway is seen from an ecological bridge that serves as a corridor for the endangered Golden Lion Tamarin in Silva Jardim in Rio de Janeiro state, Brazil December 2, 2021. Picture taken December 2, 2021. REUTERS/Pilar Olivares 

A research assistant of the Golden Lion Tamarin Association, uses a directional radio to track tamarin groups in the Atlantic Forest region of Silva Jardim in Rio de Janeiro state, Brazil December 2, 2021. Picture taken December 2, 2021. REUTERS/Pilar Olivares 

A young Golden Lion Tamarin is seen in the Atlantic Forest region of Silva Jardim in Rio de Janeiro state, Brazil December 2, 2021. Picture taken December 2, 2021. REUTERS/Pilar Olivares 

An ecological bridge that serves as a corridor for the endangered Golden Lion Tamarin is seen over an interstate highway in Silva Jardim in Rio de Janeiro state, Brazil December 2, 2021. Picture taken December 2, 2021. Picture taken with a drone. REUTERS/Pilar Olivares 

A young Golden Lion Tamarin is seen in the Atlantic Forest region of Silva Jardim in Rio de Janeiro state, Brazil December 2, 2021. Picture taken December 2, 2021. REUTERS/Pilar Olivares 

A cotton-top tamarin monkey carries its babies on its backat the Santa Cruz Zoo, amid the outbreak of coronavirus disease (COVID-19) in San Antonio del Tequendama, Colombia April 8, 2020. Picture taken April 8, 2020. REUTERS/Luisa Gonzalez 

A cotton-top tamarin monkey carries its baby on its back at the Santa Cruz Zoo, amid the outbreak of coronavirus disease (COVID-19) in San Antonio del Tequendama, Colombia April 8, 2020. Picture taken April 8, 2020. REUTERS/Luisa Gonzalez 

A zookeeper wearing a protective mask feeds cotton-top tamarin, as animals are still looked after despite the Bioparco zoo being closed to due to lockdown measures fighting coronavirus disease (COVID-19), in Rome, Italy, March 25, 2020. REUTERS/Yara Nardi 

A cotton-top tamarin monkey licks an iced piece of fruit during the hot weather in Biopark zoo in Rome, Italy, August 2, 2018. REUTERS/Alessandro Bianchi 

Cotton-top tamarin monkeys eat a piece of frozen watermelon during the hot weather in Biopark zoo in Rome, Italy, August 2, 2018. REUTERS/Alessandro Bianchi 

A male emperor tamarin (Saguinus imperator) carries a four-week-old infant at Schoenbrunn Zoo in Vienna, Austria, May 29, 2015. The infant was born at the zoo on April 26 and measures some 5 cm (2 inches) without its tail. REUTERS/Heinz-Peter Bader

An male emperor tamarin (Saguinus imperator) carries a four-week-old infant at Schoenbrunn Zoo in Vienna, Austria, May 29, 2015. The infant was born at the zoo on April 26 and measures some 5 cm (2 inches) without its tail. REUTERS/Heinz-Peter Bader TPX IMAGES OF THE DAY

A cotton-top tamarin reaches into a traditional Christmas bon bon to retrieve food treats, during a Christmas-themed feeding session at Sydney's Taronga Park Zoo, December 9, 2014. The Tamarin is one of the smallest of the primates, weighing in at only around 500 grams (1.1lbs) and is native to Colombia. REUTERS/Jason Reed (AUSTRALIA - Tags: SOCIETY ANIMALS) 

A zoo keeper prepares worms for the meal of marmosets and tamarins monkeys at the family-owned Palmyre Zoo in the 18 hectares (44 acres) pine forest of Les Mathes, in the Charente Maritime region, western France, November 19, 2013. The private zoo which opened in 1966 greets up to 800,000 visitors a year and is home to around 1,700 animals of 170 different species. Zoo keepers annually nourish the animals with 250 tons of fodder, 50 tons of meat, 20 tons of fish, 180 tons of fresh fruit and vegetables. Two full-time veterinarians are in charge of the health and well-being of the animals. The Palmyre Zoo participates in 40 European breeding programmes and provides funding for the conservation of endangered species. Picture taken November 19, 2013. REUTERS/Regis Duvignau (FRANCE - Tags: ANIMALS SOCIETY) 

A zoo keeper prepares crickets for the meal of marmosets and tamarins monkeys at the family-owned Palmyre Zoo in the 18 hectares (44 acres) pine forest of Les Mathes, in the Charente Maritime region, western France, November 19, 2013. The private zoo which opened in 1966 greets up to 800,000 visitors a year and is home to around 1,700 animals of 170 different species. Zoo keepers annually nourish the animals with 250 tons of fodder, 50 tons of meat, 20 tons of fish, 180 tons of fresh fruit and vegetables. Two full-time veterinarians are in charge of the health and well-being of the animals. The Palmyre Zoo participates in 40 European breeding programmes and provides funding for the conservation of endangered species. Picture taken November 19, 2013. REUTERS/Regis Duvignau (FRANCE - Tags: ANIMALS SOCIETY) 

A zoo keeper prepares food for marmosets and tamarins monkeys at the family-owned Palmyre Zoo in the 18 hectares (44 acres) pine forest of Les Mathes, in the Charente Maritime region, western France, November 19, 2013. The private zoo which opened in 1966 greets up to 800,000 visitors a year and is home to around 1,700 animals of 170 different species. Zoo keepers annually nourish the animals with 250 tons of fodder, 50 tons of meat, 20 tons of fish, 180 tons of fresh fruit and vegetables. Two full-time veterinarians are in charge of the health and well-being of the animals. The Palmyre Zoo participates in 40 European breeding programmes and provides funding for the conservation of endangered species. Picture taken November 19, 2013. REUTERS/Regis Duvignau (FRANCE - Tags: ANIMALS SOCIETY FOOD) 

Janick Fetard, zoo keeper, gives a cricket to a tamarin monkey at the family-owned Palmyre Zoo in the 18 hectares (44 acres) pine forest of Les Mathes, in the Charente Maritime region, western France, November 20, 2013. The private zoo which opened in 1966 greets up to 800,000 visitors a year and is home to around 1,700 animals of 170 different species. Zoo keepers annually nourish the animals with 250 tons of fodder, 50 tons of meat, 20 tons of fish, 180 tons of fresh fruit and vegetables. Two full-time veterinarians are in charge of the health and well-being of the animals. The Palmyre Zoo participates in 40 European breeding programmes and provides funding for the conservation of endangered species. Picture taken November 20, 2013. REUTERS/Regis Duvignau (FRANCE - Tags: ANIMALS SOCIETY TPX IMAGES OF THE DAY) 

Janick Fetard, a zoo keeper, feeds tamarins and marmosets monkeys in a cage at the family-owned Palmyre Zoo in the 18 hectares (44 acres) pine forest of Les Mathes, in the Charente Maritime region, western France, November 19, 2013. The private zoo which opened in 1966 greets up to 800,000 visitors a year and is home to around 1,700 animals of 170 different species. Zoo keepers annually nourish the animals with 250 tons of fodder, 50 tons of meat, 20 tons of fish, 180 tons of fresh fruit and vegetables. Two full-time veterinarians are in charge of the health and well-being of the animals. The Palmyre Zoo participates in 40 European breeding programmes and provides funding for the conservation of endangered species. Picture taken November 19, 2013. REUTERS/Regis Duvignau (FRANCE - Tags: ANIMALS SOCIETY) 

A tamarin monkey is fed by a zoo keeper at the family-owned Palmyre Zoo in the 18 hectares (44 acres) pine forest of Les Mathes, in the Charente Maritime region, western France, November 19, 2013. The private zoo which opened in 1966 greets up to 800,000 visitors a year and is home to around 1,700 animals of 170 different species. Zoo keepers annually nourish the animals with 250 tons of fodder, 50 tons of meat, 20 tons of fish, 180 tons of fresh fruit and vegetables. Two full-time veterinarians are in charge of the health and well-being of the animals. The Palmyre Zoo participates in 40 European breeding programmes and provides funding for the conservation of endangered species. Picture taken November 19, 2013. REUTERS/Regis Duvignau (FRANCE - Tags: ANIMALS SOCIETY) 

A month-old cotton-top tamarin, a species of monkey which originates from South-America, is seen with its parents at their enclosure in the Biblical Zoo in Jerusalem August 17, 2012. The tamarin couple gave birth to two babies a month ago at the zoo. Tamarins are on the list of the world's 25 most endangered primates as published by international conservation groups. REUTERS/Amir Cohen (JERUSALEM - Tags: ANIMALS SOCIETY) 

A month-old cotton-top tamarin, a species of monkey which originates from South-America, sits in its enclosure at the Biblical Zoo in Jerusalem August 17, 2012. A tamarin couple gave birth to two babies a month ago at the zoo. Tamarins are on the list of the world's 25 most endangered primates as published by international conservation groups. REUTERS/Amir Cohen (JERUSALEM - Tags: ANIMALS SOCIETY) 

A month-old cotton-top tamarin, a species of monkey which originates from South America, is pictured at its enclosure in the Biblical Zoo in Jerusalem August 17, 2012. A tamarin couple gave birth to two babies a month ago at the zoo. Tamarins are on the list of the world's 25 most endangered primates as published by international conservation groups. REUTERS/Amir Cohen (JERUSALEM - Tags: ANIMALS) 

A month-old cotton-top tamarin, a species of monkey which originates from South America, is seen with its parents at their enclosure in the Biblical Zoo in Jerusalem August 17, 2012. The tamarin couple gave birth to two babies a month ago at the zoo. Tamarins are on the list of the world's 25 most endangered primates as published by international conservation groups. REUTERS/Amir Cohen (JERUSALEM - Tags: ANIMALS) 

A one-month-old red-handed tamarin monkey (also known as Saguinus midas or the Golden-handed tamarin) sits on his mother inside an open air enclosure at Royev Ruchey zoo in the suburbs of Russia's Siberian city of Krasnoyarsk, June 22, 2012. REUTERS/Ilya Naymushin (RUSSIA - Tags: ANIMALS SOCIETY) 

An employee feeds a male red-handed tamarin monkey (also known as Saguinus midas or the Golden-handed tamarin) with a banana inside an open air enclosure at Royev Ruchey zoo in the suburbs of Russia's Siberian city of Krasnoyarsk, June 22, 2012. REUTERS/Ilya Naymushin (REUTERS - Tags: ANIMALS SOCIETY) 

A Cotton-top Tamarin monkey eats a slice of watermelon during a hot day at Biopark Zoo in Rome June 22, 2012. A heat wave swept across Italy on Tuesday with temperatures of around 32 degrees made worse by the warm air from the Scipione wind blowing from north Africa. The high temperatures are expected to last for most of June. REUTERS/Remo Casilli (ITALY - Tags: ANIMALS ENVIRONMENT SOCIETY) 

A Cotton-top Tamarin monkey eats a slice of watermelon during a hot day at Biopark Zoo in Rome June 22, 2012. A heat wave swept across Italy on Tuesday with temperatures of around 32 degrees made worse by the warm air from the Scipione wind blowing from north Africa. The high temperatures are expected to last for most of June. REUTERS/Remo Casilli (ITALY - Tags: ANIMALS ENVIRONMENT SOCIETY) 

Tamarine Tanasugarn of Thailand hits a return to Ekaterina Makarova of Russia during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Vivek Prakash (AUSTRALIA - Tags: SPORT TENNIS)

Tamarine Tanasugarn of Thailand hits a return to Ekaterina Makarova of Russia during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Vivek Prakash (AUSTRALIA - Tags: SPORT TENNIS)

Ekaterina Makarova of Russia hits a return to Tamarine Tanasugarn of Thailand during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Vivek Prakash (AUSTRALIA - Tags: SPORT TENNIS)

Ekaterina Makarova of Russia hits a return to Tamarine Tanasugarn of Thailand during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Vivek Prakash (AUSTRALIA - Tags: SPORT TENNIS)

Ekaterina Makarova of Russia hits a return to Tamarine Tanasugarn of Thailand during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Vivek Prakash (AUSTRALIA - Tags: SPORT TENNIS)

Ekaterina Makarova of Russia celebrates defeating Tamarine Tanasugarn of Thailand during their women's singles match at the Australian Open tennis tournament in Melbourne January 17, 2012. REUTERS/Vivek Prakash (AUSTRALIA - Tags: SPORT TENNIS)

Maria Sharapova of Russia acknowledges the crowd after her win over Tamarine Tanasugarn of Thailand after their match at the Pan Pacific Open tennis tournament in Tokyo September 26, 2011. REUTERS/Yuriko Nakao (JAPAN - Tags: SPORT TENNIS) 

Maria Sharapova of Russia returns the ball to Tamarine Tanasugarn of Thailand during their match at the Pan Pacific Open tennis tournament in Tokyo September 26, 2011. REUTERS/Yuriko Nakao (JAPAN - Tags: SPORT TENNIS) 

Tamarine Tanasugarn of Thailand returns the ball to Maria Sharapova of Russia during their match at the Pan Pacific Open tennis tournament in Tokyo September 26, 2011. REUTERS/Yuriko Nakao (JAPAN - Tags: SPORT TENNIS) 

Maria Sharapova of Russia returns the ball to Tamarine Tanasugarn of Thailand during their match at the Pan Pacific Open tennis tournament in Tokyo September 26, 2011. REUTERS/Yuriko Nakao (JAPAN - Tags: SPORT TENNIS) 

Maria Sharapova of Russia returns the ball to Tamarine Tanasugarn of Thailand during their match at the Pan Pacific Open tennis tournament in Tokyo September 26, 2011. REUTERS/Yuriko Nakao (JAPAN - Tags: SPORT TENNIS) 

Tamarine Tanasugarn of Thailand returns the ball to Maria Sharapova of Russia during their match at the Pan Pacific Open tennis tournament in Tokyo September 26, 2011. REUTERS/Yuriko Nakao (JAPAN - Tags: SPORT TENNIS) 

A Golden Lion Headed Tamarin waits to be given a treat by zookeeper Nicky Jago as it stands on a scale during a photocall to publicize the annual measurement of all the animals at London Zoo, in central London, August 25, 2011. REUTERS/Andrew Winning (BRITAIN - Tags: SOCIETY ANIMALS ENVIRONMENT) 

Maria Sharapova of Russia serves toTamarine Tanasugarn of Thailand during their match at the Australian Open tennis tournament in Melbourne January 17, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Maria Sharapova of Russia serves toTamarine Tanasugarn of Thailand during their match at the Australian Open tennis tournament in Melbourne January 17, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Tamarine Tanasugarn of Thailand plays a shot against Maria Sharapova of Russia during their match at the Australian Open tennis tournament in Melbourne January 17, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Maria Sharapova of Russia hits a shot to Tamarine Tanasugarn of Thailand during their match at the Australian Open tennis tournament in Melbourne January 17, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Maria Sharapova of Russia hits a shot to Tamarine Tanasugarn of Thailand during their match at the Australian Open tennis tournament in Melbourne January 17, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Maria Sharapova of Russia eats a banana in her match against Tamarine Tanasugarn of Thailand at the Australian Open tennis tournament in Melbourne January 17, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Maria Sharapova of Russia serves toTamarine Tanasugarn of Thailand during their match at the Australian Open tennis tournament in Melbourne January 17, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Maria Sharapova of Russia blows her kiss during her match against Tamarine Tanasugarn of Thailand at the Australian Open tennis tournament in Melbourne January 17, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Maria Sharapova of Russia prepares to serve to Tamarine Tanasugarn of Thailand during their match at the Australian Open tennis tournament in Melbourne January 17, 2011. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENNIS) 

Thailand's Tamarine Tanasugarn reacts after missing a shot during her match against Japan's Ayumi Morita at the 2010 Wimbledon tennis championships in London, June 22, 2010. REUTERS/Phil Noble (BRITAIN - Tags: SPORT TENNIS) 

Japan's Ayumi Morita hits a return to Thailand's Tamarine Tanasugarn at the 2010 Wimbledon tennis championships in London, June 22, 2010. REUTERS/Phil Noble (BRITAIN - Tags: SPORT TENNIS) 

Japan's Ayumi Morita hits a return to Thailand's Tamarine Tanasugarn at the 2010 Wimbledon tennis championships in London, June 22, 2010. REUTERS/Phil Noble (BRITAIN - Tags: SPORT TENNIS) 

Venus (L) and Serena Williams of the U.S. confer during their doubles match against Kirsten Flipkens of Belgium and Tamarine Tanasugarn of Thailand at the French Open tennis tournament at Roland Garros in Paris, May 25, 2010. REUTERS/Bogdan Cristel (FRANCE - Tags: SPORT TENNIS) 

Tamarine Tanasugarn of Thailand reacts during her match against Daniela Hantuchova of Slovakia at the French Open tennis tournament at Roland Garros in Paris, May 25, 2010. REUTERS/Bogdan Cristel (FRANCE - Tags: SPORT TENNIS) 

Tamarine Tanasugarn of Thailand returns a shot during her match against Daniela Hantuchova of Slovakia at the French Open tennis tournament at Roland Garros in Paris, May 25, 2010. REUTERS/Bogdan Cristel (FRANCE - Tags: SPORT TENNIS)