Macaque monkeys crowd together in their cage at a monkey farm on February 3, 2016 in Xinye county, Henan province, China. The area boasts a centuries-long and lucrative history of raising and training monkeys for performance. In Xinye, villagers are seeing an increase in business with the lunar calendar's “Year of the Monkey”. Farmers say most of the monkeys are bred and raised for domestic zoos, circuses, and performing groups, but add that some are also sold for medical research in China and the United States. Despite the popularity of the tradition, critics contend the training methods and conditions constitute animal cruelty. (Photo by Kevin Frayer/Getty Images)

Musafir, a pet monkey, eats sweets on a pavement in Kolkata, India, June 9, 2016. (Photo by Rupak De Chowdhuri/Reuters)

A wild macaque monkey eats fruit dropped by pedestrians in a suburb of Kuala Lumpur, Malaysia, on June 11, 2013. (Photo by Mohd Rasfan/AFP Photo)

Greyhounds with stuffed and sprung model monkeys strapped to their backs before a hurdle race at Wellinborough. (Photo by E. Bacon). 21st April 1928

A chained male monkey in a costume and wearing a toy mask performs at a street in Depok, West Java, Indonesia, 30 September 2021. A performing monkey in a street, known as “Topeng Monyet” (lit. Monkey Mask), is a popular form of cheap entertainment in Indonesia, especially on the island of Java. (Photo by Adi Weda/EPA/EFE)

A brown capuchin monkey holds a fruit in the Botanic Garden of Rio de Janeiro, Brazil, on July 5, 2013. (Photo by Pablo Porciuncula/AFP Photo)

Snake woman Lunga performs on stage during the “Das Goldene Lenkrad” (“The Golden Steering Wheel”) award ceremony on November 5, 2008 in Berlin, Germany. (Photo by Andreas Rentz/Getty Images)

A man feeds monkeys at Longchi scenic area, in Dujiangyan, Sichuan province, China May 24, 2017. (Photo by Reuters/Stringer)