International Primate Day
September 1
About International Primate Day
International Primate Day takes place every year on 1 September. It is an educational observance that highlights the threats facing the world’s apes, monkeys and other primates, and the abuses they suffer through hunting, habitat loss, the pet trade, entertainment and laboratory experiments. The day was established by Animal Defenders International to draw attention to the plight of humanity’s closest relatives in the animal kingdom.
What is International Primate Day?
International Primate Day is an annual awareness day dedicated to the protection and welfare of primates worldwide. It was created and is led by Animal Defenders International (ADI), a campaigning charity that works to protect animals in entertainment, research and the wild. The day brings together conservationists, sanctuaries and welfare organisations to educate the public about the dangers primates face and to call for stronger protections. It is for anyone who cares about wildlife, conservation and the ethical treatment of animals.
When is International Primate Day?
International Primate Day falls on Tuesday, 1 September 2026. It is observed on the same fixed date every year, so it always lands on 1 September regardless of the day of the week. The consistency of the date makes it easy for schools, zoos, sanctuaries and conservation groups to plan annual events and educational activities around it.
Why International Primate Day Matters
Primates are among the most threatened groups of animals on the planet. The IUCN Species Survival Commission’s Primate Specialist Group recognises well over 500 primate species, and recent assessments indicate that around 63 to 65 per cent of them are threatened with extinction. The principal drivers are the destruction and fragmentation of tropical forests, hunting for the bushmeat and wild-meat trade, the illegal pet trade, and the capture of primates for entertainment and research. Because many primates reproduce slowly and depend on intact forest habitat, populations recover only with great difficulty once they decline. International Primate Day matters because it focuses public attention on a conservation emergency that is unfolding quietly, and it encourages people to support the sanctuaries, laws and campaigns that can turn the tide.
How to Get Involved in International Primate Day
There are many meaningful ways to mark the day and support primate welfare:
- Support a reputable sanctuary – Donate to or sponsor a primate at an accredited rescue centre that rehabilitates animals saved from the pet trade, laboratories or entertainment.
- Learn about the threats – Read up on the four main dangers primates face, namely the bushmeat trade, the laboratory trade, the pet trade and entertainment, so you can speak about them with confidence.
- Avoid harmful tourism – Refuse to pose for photos with primates or visit attractions that use them as props, as these often rely on animals taken from the wild.
- Choose ethical products – Look for sustainable palm oil and avoid products linked to rainforest destruction, a leading cause of primate habitat loss.
- Spread awareness online – Share facts, sanctuary appeals and campaign messages on social media to reach people who may not know how endangered primates are.
- Support stronger laws – Back campaigns that seek to ban the use of primates in advertising, entertainment and the exotic pet trade.
- Get schools involved – Encourage teachers to run a lesson or activity about primates and their conservation, helping the next generation understand why these animals matter.
History of International Primate Day
International Primate Day was established in 2005 by Animal Defenders International, a charity with offices in the United Kingdom, the United States and South America. ADI created the day initially with a strong focus on ending experiments on monkeys, but its scope quickly broadened to encompass the full range of threats facing primates around the world.
The observance is closely linked to ADI’s long-running “My Mate’s a Primate” campaign, which aims to educate the public about the abuse and exploitation of apes and monkeys. Over the years, the campaign has highlighted different aspects of primate welfare on different anniversaries, ranging from the use of chimpanzees and orangutans in films and advertising to the suffering caused by the international pet trade.
Since its launch, International Primate Day has been adopted and supported by numerous primate-focused organisations and sanctuaries, becoming a recognised fixture in the global conservation calendar. Each 1 September, these groups use the occasion to publish appeals, host educational events and renew calls for better legal protection for primates.
Noteworthy Facts About International Primate Day
- The day was founded in 2005 by Animal Defenders International and is observed annually on 1 September.
- It is linked to ADI’s “My Mate’s a Primate” campaign, which targets the bushmeat trade, the laboratory trade, the pet trade and entertainment.
- Scientists recognise more than 500 primate species, ranging from tiny mouse lemurs to the mighty gorilla.
- Around 63 to 65 per cent of primate species are classed as threatened with extinction by the IUCN.
- Habitat destruction and hunting are the leading causes of declining primate populations worldwide.
Frequently Asked Questions
What is International Primate Day?
It is an annual awareness day, founded by Animal Defenders International, that highlights the threats facing apes, monkeys and other primates and promotes their protection and welfare.
When is International Primate Day in 2026?
It takes place on Tuesday, 1 September 2026, and on 1 September every year.
Who organises International Primate Day?
The day was created in 2005 by Animal Defenders International (ADI) and is supported each year by a range of primate-focused conservation and welfare organisations.
Spread the Word
Help raise awareness by sharing International Primate Day with your friends, family and followers. Use the hashtags #InternationalPrimateDay and #PrimateDay2026 on social media. The more people who understand how endangered our closest relatives are, the greater the pressure to protect them. If you enjoy supporting wildlife causes, you might also like World Rainforest Day, which protects the forests that so many primates call home.
Related Awareness Days
- World Giraffe Day – Another wildlife awareness day shining a light on a threatened species and the conservation work needed to save it.
- International Day of Action for Elephants in Zoos – Focuses on the welfare of large, intelligent animals held in captivity, a cause closely related to primate protection.
- World Rainforest Day – Protects the tropical forests that provide critical habitat for the majority of the world’s primate species.
Links
- Visit Animal Defenders International, the founder of International Primate Day
- Explore more awareness days at AwarenessDays.com

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