Action for Primates

Long-tailed macaques, photo by Sarah Kite
Facebook icon Instagram icon X icon Vimeo icon Contact us via E-mail

News 2024

The following are news items we have posted in 2024. See elsewhere for news from other years.


Index of news items; select date & title to access:


10 July 2024: New report reveals short, tragic lives of two baby monkeys tortured and abused for Facebook videos

Garina crying out, wrists taped
Garina crying out, wrists taped
Luna with taped hand
Luna with taped hand

A new report from Action for Primates and Lady Freethinker has exposed the tragic short lives of two baby monkeys – named Garina and Luna – who over weeks and months were ruthlessly tormented, psychologically abused, endured extreme cruelty, and were ultimately killed for social media content. Multiple, harrowing videos of their suffering and distress have been posted for "entertainment" on numerous Facebook profiles, groups, or playlists – and sickening torture videos showing their distress, torment and abuse continue to be posted regularly. Facebook viewers who identify as "monkey haters" watch their suffering and despair with sadistic pleasure.

Action for Primates and Lady Freethinker are urging Facebook parent company Meta to remove and block all content depicting such horrific animal abuse.

Garina and Luna were held captive by the same person, who subjected them to similar abuse and torture, including physically and sexually assaulting them with his hands, thorny cactus or crabs. Their fur was shaved, their hands and feet were bound so they could not move, eat or drink; sticky tape was used to bind them to other animals, including monkeys; they were subjected to prolonged and aggressive blasts of cold water; they were violently shaken, held underwater and buried up to their necks in mud; they were set upon by dogs.

Dr Nedim Buyukmihci, a veterinarian and co-founder of Action for Primates, stated: These vulnerable infant macaques were placed in extremely frightening situations; were physically harmed by severe restraint and injuries by other animals; and were emotionally and physically brutalised over a period of time. Their facial expressions and their clinging onto each other is visual evidence of their extreme distress. Physical injuries comprising facial wounds, for example, are evident. Further, these infant monkeys were 'broken' psychologically by the continual daily torture methods creating a state of learned helplessness in which an individual internalises pain and suffering because they have 'learned' that attempts at avoidance do not bring relief.

What the people are doing to these infant monkeys is particularly disturbing. It is untenable that Meta should tolerate the existence of such individuals and groups on its platform, not only because of the horrifying nature of the atrocities being inflicted upon non-human primates, but also because of the harmful and damaging impact the viewing of such content will have on people, especially children.


Facebook promotes animal torture by failing to identify, through its own monitoring systems, and remove such content, and by failing to remove such content when torture videos have been reported to the company. Twenty-five percent of the Facebook sites represented in the report were previously reported to Meta by Lady Freethinker and Action for Primates – but the sites and torture videos remain active and available to anyone to access and view, including children.

Lady Freethinker and Action for Primates have sent this report directly to Meta. To date, there has been no response of any kind.

What you can do:

25 May 2024: Former teacher pleads guilty in US baby monkey torture case

Infant long-tailed macaque abused for 'entertainment' on social media; Action for Primates
Infant long-tailed macaque abused on social media
Action for Primates

Action for Primates welcomes prosecution of Ronald Bedra from Ohio, who was involved in horrifying violence against baby monkeys. The former teacher – who resigned from the school district just weeks before his federal case was filed in court – pleaded guilty for his role in creating and distributing videos of baby monkeys being brutally tortured.

An investigation by Action for Primates and Lady Freethinker first uncovered the existence of the sadistic online monkey torture group called Milliontears. This group was set up by Bedra and others in 2021, working with people in Indonesia to facilitate monkey torture videos. The evidence we uncovered, including videos and screenshots of chats from him and other group members, was handed over to the USA authorities.

Bedra, who went by the username DemonSword SoulDestroyer, set in motion paying for monkey torture through a depraved monkey adoption scheme, in which he invited group members to pay for their own private monkey to be filmed while being tortured through their chosen method. Alternately, members could make smaller contributions towards a fee for their share of what Bedra called a community monkey. Group members could then put in requests for acts of cruelty and torture to be inflicted upon this shared monkey and decide how the monkey was to be killed. The torment and torture inflicted upon baby monkeys and paid for by the Milliontears group was horrifying (https://www.independent.co.uk/asia/southeast-asia/youtube-group-monkey-torture-indonesia-b1900135.html).

According to court documents, Bedra conspired with others to create and distribute videos which depicted acts of sadistic violence against baby and adult monkeys, including having digits and limbs severed and being forcibly sodomized with a heated screwdriver (https://www.justice.gov/opa/pr/ohio-man-pleads-guilty-creating-and-distributing-videos-depicting-monkey-torture-and). No sentencing date has yet been set.

Action for Primates applauds the action by law enforcement to investigate and prosecute this case. The action is part of an international effort by law enforcement agencies in the USA, UK and Indonesia to identify and prosecute those groups and individuals who facilitate the torture of baby monkeys. Several people in the UK have been charged (https://tinyurl.com/yv67wf3z). In the USA and Indonesia, others have been convicted and imprisoned.

Action for Primates and Lady Freethinker continue to investigate and work to end the horrifying abuse of monkeys for online content – sending intelligence and information to law enforcement, publishing reports and communicating directly with social media platforms.

7 May 2024: British woman pleads guilty in monkey torture case

Infant long-tailed macaque; Cruelty Free International
Infant long-tailed macaque
Cruelty Free International

A British woman, Holly LeGresley, has pleaded guilty at Worcester Magistrates' Court to charges of consuming, causing and facilitating the torture of monkeys. She was part of a global monkey torture ring that paid for and ordered baby monkeys to be tortured and killed in Indonesia to create videos to be circulated online. She will be sentenced on 7th June.

LeGresley, who called herself 'The Immolator', even ran a poll for group members to vote on the method of torture they wanted to see inflicted upon a monkey for a video to be made, funded by the group. The choices included sealing a monkey inside a jar with red ants, applying a painful substance to the wounds created by a cheese grater or glueing together various parts of a monkey's body.

Action for Primates, a UK-based project that advocates globally on behalf of non-human primates, and Lady Freethinker, a US-based animal protection organisation, have spent three years investigating the sadistic world of animal torture videos. Our evidence and information have been given to various law enforcement agencies and spurred the BBC investigation and documentary about online monkey torture gangs – "The Monkey Haters" – which helped lead to the inclusion of animal cruelty in the UK Online Safety Act.

Lady Freethinker and Action for Primates commend UK law enforcement for taking on this disturbing subject and welcome the charges brought by West Mercia police force. Any individual involved in facilitating such heinous animal cruelty should be prosecuted to the fullest extent of the law.

The charges are part of an international effort by law enforcement agencies to tackle those groups and individuals who facilitate the torture of baby monkeys. At least 20 people across the globe are being investigated, and several in the USA and Indonesia have already been convicted and imprisoned.

Members of these torture groups are primarily active on platforms such as Telegram and get 'pleasure' from watching helpless and vulnerable infant monkeys – some just a few days old – in terror and pain fighting for their lives. The extreme cruelty inflicted upon the baby monkeys included being set alight; having parts of their body cut off, including limbs, genitals, fingers and toes; their bones broken with a hammer; their heads squeezed in a clamp; beaten viciously; and having their eyes drilled out with a power tool.

Sarah Kite, spokesperson for Action for Primates, and who assisted the UK police with their investigation, stated: Such extreme cruelty and depravity must never be tolerated. Anyone involved in this type of behaviour must be held to account, and others need to know that such behaviour will never be tolerated.

Nina Jackel, Founder, Lady Freethinker, stated: The horrors being inflicted on innocent, baby monkeys for online videos are sickening, and strong actions must be taken to protect animals from such brutality at the hands of humans. Those involved in the creation or distribution of animal torture content for 'enjoyment' pose a threat to both animals and humans, and they must be held accountable.

Shockingly, there are also monkey torture groups on the world's top social media platforms, and many of these graphic videos – depicting mutilation, burning, beating and more – have also been posted on Facebook, making them easily available for others, including children, to access and view. By allowing these people to operate and post monkey torture content, social media platforms have enabled and continue to enable animal cruelty fetishists to connect and escalate their cruel activities to extreme and grotesque levels. Lady Freethinker and Action for Primates are calling on social media and video sharing platforms to take immediate action to stop the proliferation of animal torture content that is being posted online.

A second woman – Adriana Orme – chose not to enter a plea at this stage and will appear in court again on 5th June.

6 May 2024: MeWe takes action to tackle online monkey torture content

Juvenile long-tailed macaque in Borneo; Charles J. Sharp
Juvenile long-tailed macaque in Borneo
Charles J. Sharp

Action for Primates and Lady Freethinker have welcomed the commitment by MeWe to remove animal torture content from its platform. MeWe, the global social media and social networking service, with 20-million users worldwide, responded promptly and positively after being alerted to the circulation on its platform of graphic and horrifying videos depicting baby monkeys being tortured and killed.

In a statement released by MeWe, the company said: MeWe is thrilled to be recognized by Action for Primates and Lady Freethinker for our efforts in removing animal torture content from our platform and for working to create a better online environment for our users. Their mission to protect primates from harm and exploitation exactly aligns with our commitment to ethical moderation practices. We would like to extend our gratitude too for their advocacy and the great work that they do protecting primates worldwide.

Action for Primates and Lady Freethinker recognise the difficulties faced by social media platforms and apps as perverted individuals and groups search for new ways to circulate their despicable videos. A prompt response and effective means of dealing with concerns and complaints about this horrific content is vital, which is why we are publicly acknowledging the important efforts and commitment by MeWe to tackle this disturbing issue.

29 April 2024: TeleGuard removes monkey torture content from platform

Long-tailed macaques living freely; Action for Primates
Long-tailed macaques living freely
Action for Primates

Action for Primates has welcomed the swift action by TeleGuard in removing groups and individuals involved in the promotion and distribution of monkey torture content from their platform.

Action for Primates and Lady Freethinker had raised concerns with Teleguard, the messenger app, after finding the presence of highly graphic and disturbing videos of baby monkeys being tortured and killed. The videos were clearly breaching the platform's terms of use.

In response to the discovery of such horrific content on their platform, TeleGuard stated that We abhor such atrocities and in no way want TeleGuard to be misused for this purpose and We find it morally indefensible and abhorrent and will NEVER tolerate something like that here at TeleGuard.

Action for Primates and Lady Freethinker continue to investigate the sadistic and disturbing abuse of monkeys for social media content. We are extremely grateful to TeleGuard for responding to our alert, and for their commitment to stop such videos from being circulated on its app. We urge other social media platforms to police their own guidelines rigorously and proactively, as well as to respond promptly and effectively to complaints, to help remove the incentives for people to commit and film these despicable acts of cruelty.

22 April 2024: Global macaque supply industry under the spotlight during Cambodia monkey smuggling trial

Long-tailed macaques in transit crates, Cambodia; Cruelty Free International
Long-tailed macaques in transit crates, Cambodia
Cruelty Free International

The jury at the Cambodian monkey trafficking trial in Florida recently acquitted Masphal Kry on conspiracy and smuggling charges. The charges, brought by the US Department of Justice, resulted from a US Fish & Wildlife Service (USFWS) investigation into monkey trafficking, during which it was revealed that wild long-tailed macaques in Cambodia were being falsely labelled as captive-bred for export to the USA. Kry, who was a government official at the Cambodian Forestry Administration when he was arrested, is the first individual to stand trial. Other indicted individuals, including the owner and several staff of Vanny BioResearch, the macaque supplier in Cambodia at the centre of the smuggling case, are now considered to be fugitives and still face trial.

The court heard a compelling account from a USFWS confidential informant. It was also shown disturbing videos of distressed wild-captured monkeys being delivered to Vanny BioResearch in nylon bags. One USFWS agent told the court that he tracked individual monkeys captured in the wild and who had been delivered to Vanny BioResearch in Cambodia. These monkeys were then exported to the USA.

Several USA companies involved in the import, supply and use of macaques in research and toxicity (poisoning) testing, including Orient BioResource Center and Envigo Global Services, subsequently received subpoenas requiring they produce documents and information relating to the import of non-human primates into the USA.

Although Kry was acquitted, in the course of the trial, damning evidence was heard of the relentless pursuit of long-tailed macaques where there is little to no morality surrounding how monkeys are obtained. Vanny BioResearch is a major supplier of monkeys to the USA prior to the charges brought by the Department of Justice. Unable to breed enough long-tailed macaques to supply demand from the USA import and user companies, it was claimed that the company started to illegally source wild-caught monkeys and label them as captive-bred to export instead.

Action for Primates has been raising concerns for many years about the global trade in long-tailed macaques – including the cruelty and suffering inflicted upon the individuals and the questionable validity of captive breeding claims. Long-tailed macaque farms focused within Southeast Asia, in particular in Cambodia, have rapidly developed and become industrial-scale enterprises, with hundreds of thousands of macaques exported in recent years.

24 March 2024: Individuals in UK charged in monkey torture case

Long-tailed macaque in captivity, Indonesia; Animal Friends Jogja/Action for Primates
Long-tailed macaque, captivity, Indonesia
Animal Friends Jogja
Action for Primates

Two women, Holly LeGresley of Kidderminster and Adriana Orme of Upton-upon Severn, have both been charged with publishing an obscene article and causing unnecessary suffering to a protected animal.

The charges are in relation to causing, consuming and facilitating the torture of monkeys.

The women have been bailed to appear in Court in May 2024.

More information: https://www.bbc.co.uk/news/articles/czkzn5k9d12o

15 March 2024: Major Cambodian macaque trafficking trial starts in USA

Young long-tailed macaque held in sack after being trapped, Cambodia; Cruelty Free International
Trapped young long-tailed macaque, Cambodia
Cruelty Free International

A Cambodian monkey trafficking trial began in Florida this week. It follows the filing of charges by the US Department of Justice (DoJ) against Cambodian wildlife officials and the owner and several staff from Vanny Bio-Research, a major macaque supplier in Cambodia. The charges of smuggling and conspiracy to violate the Lacey Act and the Endangered Species Act follow a major investigation by the US Fish and Wildlife Service (USFWS) into the global trafficking of long-tailed macaques (Macaca fascicularis) into the USA for research and toxicity (poisoning) testing. Masphal Kry, who is now on trial, was a government official at the Cambodian Forestry Administration when he was arrested in November 2022 at JFK Airport en route to an international CITES wildlife conference. The indictments have already received widespread international news media attention, and the trial will place the global trade in long-tailed macaques for the USA research and toxicity testing industry under the spotlight.

The DoJ allege that Kry and seven other individuals were part of an international macaque smuggling ring selling wild-caught long-tailed macaques falsely stated to be captive bred at Cambodian facilities for export to the USA. According to the DoJ, assistance was provided by the CITES authority in Cambodia and the Ministry of Agriculture, Forestry and Fisheries to deliver wild-caught macaques taken from national parks and protected areas in Cambodia to help make up for a shortage of 'suitable' monkeys for export. The wild-caught macaques were taken to breeding facilities and provided with false CITES export permits.

A USA government confidential informant, who had worked at Vanny Bio-Research for several years, documented the delivery of thousands of wild-caught monkeys to the facility. The court has been given harrowing accounts and has watched video footage taken during the USFWS investigation.

Several USA companies involved in the import, supply and use of macaques in research and toxicity testing, including Orient BioResource Center and Envigo Global Services, subsequently received subpoenas requiring they produce documents and information relating to the import of non-human primates into the USA.

Action for Primates has been raising concerns for many years about the global trade in long-tailed macaques – including the cruelty and suffering inflicted upon the individuals and the questionable validity of captive breeding claims. Long-tailed macaque farms focused within Southeast Asia, in particular in Cambodia, have rapidly developed and become industrial-scale enterprises, with hundreds of thousands of macaques exported in recent years.

In 2022, the long-tailed macaque was uplisted to Endangered on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. This new conservation status assessment was based on the degree of exploitation of the species, including their trade for research and toxicity testing, as 'pets', for 'entertainment', for human consumption and killing because of negative interactions with people. These, together with ongoing habitat destruction, are decimating wild populations of long-tailed macaques.

28 February 2024: Mauritius reports major increase in monkey exports during 2023

Long-tailed macaque in Mauritius monkey farm; Cruelty Free International
Long-tailed macaque, Mauritius monkey farm
Cruelty Free International

Mauritius reported exporting 15,907 long-tailed macaques in 2023, including to the USA (11,014), Spain (1,879), the UK (1,753), France (440) and Israel (11). This represents a substantial increase over 2022, when 11,897 long-tailed macaques were exported. The monkeys were destined for the research and toxicity (poisoning) testing industry.

In 2023, Mauritius also took the place of Cambodia and became the main exporter of monkeys to the USA, including almost 2,500 of whom had been captured in the wild. This follows restrictions placed on the trade from Cambodia to the USA in 2023, following the US Fish and Wildlife Service investigation into the global trafficking of long-tailed macaques.

The capture of wild monkeys is an inhumane practice, universally recognised as cruel because of the forced removal of the monkeys from their habitat and families. Several official bodies and organisations, including the European Union (European Union 2010) and the International Primatological Society (IPS 2021), recognise the suffering involved in this practice and, since 2013, the EU has prohibited the use of wild-caught primates in experiments.

Long-tailed macaques are the primary non-human primate used in toxicity testing, which is the deliberate poisoning of animals to see whether and how much of a chemical or drug it takes to cause them serious harm or death. They are forcibly restrained and a test substance given by injection, infusion, stomach tube or aerosol – in increasing amounts to measure the poisoning effects. All individuals alive at the end of each test are killed.

References:

  1. European Union 2010-09-22 Directive 2010/63/EU of the European Parliament and of the Council of 22 September 2010 on the protection of animals used for scientific purposes European Union accessed 2024-02-27
  2. International Primatological Society 2021-01-01 Trade in Primates Captured in the Wild International Primatological Society accessed 2024-02-14

17 February 2024: Indonesian suspect arrested for torturing and killing baby monkeys and selling the videos online

Infant long-tailed macaque abused for 'entertainment' on social media; Action for Primates
Infant long-tailed macaque abused on social media
Action for Primates

Action for Primates and Lady Freethinker welcome action taken by West Kalimantan Police in Indonesia, in the arrest of an individual suspected of torturing and killing baby monkeys on camera and selling the videos to buyers in the USA and abroad for $50-$100 USD per video.

Police reportedly found a dead, mutilated monkey wrapped in plastic outside the suspect's home; torture apparatus inside the home, including a gas stove, soldering iron, hammer and slingshot; and 58 videos depicting sadistic torture of baby long-tailed macaques on his mobile device. The suspect's name has not yet been released publicly.

Lady Freethinker and Action for Primates, together with other animal groups such as Jakarta Animal Aid Network (JAAN), have been investigating the disturbing world of online monkey torture rings for over two years in an effort to end the horrifying violence inflicted upon baby monkeys for online circulation.

Their work began with an investigation in 2021 that uncovered the disturbing escalation of private online groups on platforms like Telegram, in which people in Indonesia created 'custom' monkey torture videos for an audience of monkey "haters" in the USA, UK and elsewhere. Members of the group paid for and dictated what method of torture they wanted inflicted upon the monkeys.

These underground rings were the topic of the recent BBC documentary "The Monkey Haters", for which Lady Freethinker, Action for Primates and JAAN provided information and intelligence.

In the last 18 months, two other individuals in Indonesia have been convicted and imprisoned for their part in torturing and killing baby monkeys; one individual in the USA has been jailed with two others charged for their roles in online monkey torture gangs, and there have been several arrests in the UK.

Shockingly, many of these graphic videos – depicting mutilation, burning, beating and more – have also been posted on Facebook and YouTube, making them easily available for others, including children, to access and view. Lady Freethinker and Action for Primates are calling on social media and video sharing platforms to take immediate action to stop the proliferation of animal torture content that is being posted online.

Sarah Kite, co-founder of Action for Primates, stated: We welcome the action taken by the Indonesian Police. Filming the torture and killing of baby monkeys for 'entertainment' is abhorrent and must never be tolerated. We hope this will deter other people from becoming involved in these perverted and sadistic activities.

Nina Jackel, Founder of Lady Freethinker, stated: I'm thankful to West Kalimantan Police for arresting the person thought to be responsible for horrific violence against dozens of innocent monkeys for profit. Such crimes must be taken seriously, especially as evidence shows time and time again the link between animal cruelty and violence against humans.

21 January 2024: The trade in wild-caught monkeys from South America

Guianan squirrel monkey living freely in Colombia; Diego Guzmán, Unsplash
Guianan squirrel monkey, Colombia
Diego Guzmán, Unsplash

A review of the most recent data submitted to CITES for 2017-2021, revealed that 7,209 live native non-human primates, almost all captured in the wild, were exported from South American countries. The main countries to export were Guyana and Suriname, with others being Venezuela, Brazil and Peru. The most common species exported were squirrel monkeys (Saimiri sciureus), capuchins (Cebus apella; Cebus olivaceus) and tamarins (Saguinus midas). Many were sold for commercial trade, and it is feared that they may have ended up in the 'pet', 'entertainment' or laboratory trade.

Guyana exported the greatest number and variety of species; the most common being the Guianan squirrel monkey (3,616), followed by the tufted capuchin (976), the wedge-capped capuchin (324) and the golden-handed tamarin (223). The most common species exported by Suriname was the Guianan squirrel monkey (1,160) followed by the tufted capuchin (226). All exports from Guyana and Suriname were recorded as wild-caught.

The main country to import non-human primates from South America between 2017-2021, was China (4,682), followed by the USA (828) and Thailand (508). China is renowned as a major user of non-human primates for research and toxicity (poisoning) testing. It is also renowned for keeping various species of wildlife, including primates, as 'pets' and using them in 'entertainment' venues. Thailand occupies a major role in the global wildlife trade, and the demand for 'exotic pets' within the country has been well documented. The Guianan squirrel monkey was the main species imported by the USA. In 2019, Venezuela reported exporting 269 wedge-capped capuchins to the USA for 'scientific' purposes.

Black-tufted marmoset free in Atlantic Forest, Brazil; Afonso Farias
Black-tufted marmoset, Atlantic Forest, Brazil
Afonso Farias

There is also an extensive global trade in non-human primate blood and serum and other tissues from South America. This involves multiple species, reported primarily as being wild-caught, and exported for 'scientific' purposes. Between 2017-2021, Brazil and Peru were the greatest exporters of these bodily products.

It is alarming that many countries still allow the cruel exploitation of their native monkeys and continue to grant CITES export permits for those captured and torn from their families and natural habitats. Equally disturbing is that countries continue to import wild-caught monkeys, despite major welfare issues and the negative impact on wild populations.

Wild native non-human primates also face many threats from a domestic trade that can include their capture to be kept or sold as 'pets' or for 'entertainment', for laboratories and breeding facilities or for human consumption. The extent of this domestic trade is not known as such data are not included in the CITES trade database.

One example of the result of domestic trade involved Brazil. Wild black-tufted marmosets (Callithrix penicillata) living freely in the forests of Brazil, were captured by the Brazilian Institute of Environment and Renewable Natural Resources, and "donated" to the Universidade Federal de Minas Gerais (UFMG) where they were used and killed in tests for an "anti-cocaine vaccine" (see our news report for more information).

An article by Action for Primates, reporting on this disturbing trade in thousands of monkeys out of South America, has been published in Biodiversity MAG, the online magazine of the International Conservation & Biodiversity Team (ICBT). Click here for access to the article. The entire issue can be accessed by clicking here.

13 January 2024: Cruel use of snow monkeys in Japan to study human gambling addiction

Japanese macaques in Jigokudani hot springs; andrew_t8, FreeIMG
Japanese macaques, Jigokudani hot springs
andrew_t8, FreeIMG

In an effort to understand how human gamblers make their choices, snow monkeys (also known as Japanese macaques) suffered extensively and were killed in a disturbing experiment at Kyoto University, Japan (Sasaki et al 2024). The procedures were approved by the Committee for Animal Experiment at the Graduate School of Medicine.

Six adult Japanese macaques were used (four were female, two were male) in this research to study the underlying neural mechanism of gambling disorder in humans. They were subjected to highly invasive surgery in which their scalps were cut open and an injection chamber attached to the skull, and the skull opened and electrodes placed directly onto the brain. In some, a toxin was injected into the brain in order to temporarily cause loss of function in a specific region. A marking agent was also injected.

In addition, head posts were attached to the skulls in order to later severely restrain the macaques' heads in a fixed position during training and recording sessions. Eye movements were used to indicate whether the macaques preferred high risk-high return rewards or low risk-low return rewards. The researchers stated that water was used as a reward. Monkeys would not normally consider water to be a 'reward'. We have to assume, therefore, that there had to be fluid or water deprivation sufficient in degree to make them thirsty enough to 'work' for a few drops of water.

The macaques had to endure laboratory conditions and invasive brain surgery, with their lives completely controlled – coerced into 'working' for water rewards – before being killed in order to get their brains for further study.

Gambling is an addiction, and, like other addictive disorders in humans, is complex, and influenced by many variables such as social, environmental, economic, cultural, psychological and biological. The researchers stated that they were trying to determine how the macaques made a decision when choosing between a high or low chance of getting a reward and compared this with more pathological forms of risk-taking decisions manifesting as gambling disorders. Using macaques as surrogates in an attempt to study gambling disorder in humans is not just immensely cruel, it is also irrelevant to people. By stating that only future studies will reveal whether this state in primates is comparable to that in patients with gambling disorders, the researchers themselves admitted that their findings may have no relevance to humans with gambling disorders. There are, however, ethical studies in human volunteers which provide the kind of information being sought. The only way to learn about human conditions is by channelling financial and intellectual resources into studying humans.

Reference:

  1. Sasaki, Ryo; Ohta, Yasumi; Onoe, Hirotaka; Yamaguchi, Reona; Miyamoto, Takeshi; Tokuda, Takashi; Tamaki, Yuki; Isa, Kaoru; Takahashi, Jun; Kobayashi, Kenta; Ohta, Jun and Isa, Tadashi 2024-01-05 Balancing risk-return decisions by manipulating the mesofrontal circuits in primates Science (New York, N.Y.) 383(6678):55-61

7 January 2024: Infant marmosets killed in inhumane parental deprivation research in Japan

Common marmosets living freely; Dario Sanches
Common marmosets living freely
Dario Sanches

Demonstrating a remarkable lack of compassion, researchers removed newborn common marmosets from their mothers (and fathers) in order to study the effects of parental deprivation and human hand-rearing on brain development (Shinohara et al 2024). The experiment was carried out at the Central Institute for Experimental Animals in Japan, and was approved by their animal use committee.

The marmosets were bred at CLEA Japan, an animal supply company, and reportedly involved litters that contained more than two infants. Six marmosets were removed from their mothers soon after birth. They were placed into individual cages in a separate animal room, ensuring no visual or auditory contact with their parents, and hand-reared by staff. After 4 weeks, these infants were group housed. Five other marmosets were allowed to be reared by their parents until they were about 11 months old. They were then removed from their parents and, along with the six who had been deprived of their mothers after birth, were killed in order to get their brains for further study. The researchers found that there were changes in brain biochemistry, which would have made the marmosets susceptible to brain diseases.

What is particularly tragic is that the researchers were aware that hand-reared marmosets exhibit behavioural abnormalities, including abnormal vocalisations, excessive attachment to the caretaker and aggressive behaviour. Despite this, the researchers carried out the experiment, undeniably causing great suffering and distress by cruelly depriving not only the infants of their parents, but also the parents of their infants.

Research using non-human primates involving maternal deprivation has been taking place for decades. Such research in non-human primates – and the recognition of the lasting behavioural and psychological harms it causes – has been widely condemned, including that currently being done using rhesus macaques at Harvard Medical School in the USA (https://animal.law.harvard.edu/news-article/cruel-monkey-experiments/).

Reference:

  1. Shinohara, Haruka; Meguro-Horike, Makiko; Inoue, Takashi; Shimazu, Miyuki; Hattori, Machiko; Hibino, Hitoshi; Fukasawa, Kazumasa; Sasaki, Erika and Horike, Shin-ichi 2024-01-03 Early parental deprivation during primate infancy has a lifelong impact on gene expression in the male marmoset brain Scientific Reports 14(1):330