World Rat Day
April 4
About World Rat Day
World Rat Day is observed on 4 April each year, celebrating domestic rats as intelligent, affectionate, and misunderstood pets. Created in 2002 by members of the Ratlist online community, the day aims to challenge negative stereotypes about rats and promote their welfare as companion animals.
What is World Rat Day?
World Rat Day is an annual awareness day dedicated to pet rats — also known as fancy rats — and the people who love them. The day was created to educate the public about the positive qualities of domestic rats, which are often overlooked due to the stigma associated with their wild cousins. Pet rat enthusiasts use 4 April to share stories, photographs, and information about rat care, encouraging others to consider these clever, sociable animals as companions. The day is observed internationally, with rat owners and animal welfare groups participating worldwide.
When is World Rat Day?
World Rat Day falls on Saturday, 4 April 2026. It is observed annually on 4 April — a fixed date that never changes. The date was specifically chosen to commemorate the anniversary of the first Ratlist digest, which was released on 4 April 1995.
Why World Rat Day Matters
Rats suffer from one of the worst reputations of any animal, largely because of their wild relatives’ association with disease and urban pest problems. Domestic rats, however, are a different story entirely. Scientists at the University of Cambridge have demonstrated that rats exhibit metacognition — the ability to make decisions based on what they do and do not know — a trait once thought to be unique to primates. Studies have also shown that rats display empathy, choosing to free trapped companions even when presented with the option of a chocolate treat instead. World Rat Day matters because it gives these remarkable animals the recognition they deserve and helps potential pet owners understand the joy of keeping rats. If you appreciate animals that are frequently misunderstood, you might also enjoy learning about National Pet Month, which celebrates all companion animals throughout April.
How to Get Involved in World Rat Day
Whether you already keep rats or are simply curious about them, here are ways to participate:
- Share photos and stories of your pet rats — Social media is the heartbeat of World Rat Day. Post pictures, videos, and anecdotes about your rats using the official hashtags to spread positive awareness.
- Educate yourself about rat care — If you are considering getting pet rats, use 4 April as the starting point for thorough research. Rats need spacious cages, social companionship (they should always be kept in pairs or groups), and mental stimulation.
- Visit or support a rat rescue — Many small animal rescues take in rats surrendered by owners who underestimated the commitment involved. Donations of food, bedding, and money are always welcome.
- Host a “Meet the Rats” event — If you are a confident rat owner, consider organising an informal meet-and-greet where friends, neighbours, or schoolchildren can interact with your rats in a safe, supervised setting.
- Challenge rat stereotypes in conversation — When someone expresses disgust at rats, take the opportunity to share a few facts. Many people change their minds once they learn about rats’ intelligence and sociability.
- Make enrichment toys for your rats — DIY puzzle feeders, hammocks, and climbing structures are easy to create from household materials and provide rats with much-needed mental stimulation.
- Donate to animal welfare organisations — Groups like the RSPCA and the American Fancy Rat and Mouse Association work to improve the lives of pet rats and other small animals.
History of World Rat Day
World Rat Day originated within the Ratlist, an internet mailing list dedicated to pet rats. The Ratlist was established in 1995 and initially hosted by the University of Washington. It quickly grew into one of the largest online communities for rat enthusiasts, providing a space to share advice on care, health, and behaviour.
In 2002, members of the Ratlist — led by James Kittock and Robyn Arthur, the list’s owners — began discussing the idea of creating a holiday to honour pet rats and educate the wider public. The group wanted a day that would generate positive attention for domestic rats and help dismantle the misconceptions inherited from wild rat populations. They settled on 4 April because it was the date of the very first Ratlist digest in 1995 — the only date clearly linked to the community’s origins.
Since its founding, World Rat Day has grown from a niche internet observance into a globally recognised event. Rat owners around the world mark the day with social media campaigns, local meetups, and educational outreach. The day has also attracted attention from veterinary organisations and animal welfare groups, helping to improve standards of care for pet rats.
Noteworthy Facts About World Rat Day
- World Rat Day was created in 2002 by James Kittock and Robyn Arthur, owners of the Ratlist mailing community.
- The date of 4 April commemorates the first Ratlist digest, published on 4 April 1995.
- Domestic rats can learn their names and respond when called — they can also be taught tricks like fetching, spinning, and navigating obstacle courses.
- Rats are highly social animals and should always be kept in pairs or groups; solitary rats can develop depression and behavioural problems.
- A study by the University of Chicago found that rats will free a trapped companion even when offered chocolate as an alternative, demonstrating empathy.
Frequently Asked Questions
What is World Rat Day?
World Rat Day is an annual observance on 4 April that celebrates domestic pet rats, promotes their welfare, and aims to challenge negative stereotypes about these intelligent and affectionate animals.
When is World Rat Day in 2026?
World Rat Day falls on Saturday, 4 April 2026.
Who created World Rat Day?
World Rat Day was created in 2002 by James Kittock and Robyn Arthur, the owners of the Ratlist, an online mailing list community dedicated to pet rats. The date was chosen to mark the anniversary of the Ratlist’s first digest in 1995.
Spread the Word
Help raise awareness by sharing World Rat Day with your friends, family, and followers. Use the hashtags #WorldRatDay and #WorldRatDay2026 on social media. Share a photo of your pet rat, a fun fact, or a link to a rat rescue — every share helps change perceptions.
Related Awareness Days
- National Pet Month — Running throughout April, this month celebrates all companion animals and promotes responsible pet ownership.
- National Pet Day — Observed on 11 April, this day encourages people to appreciate the pets in their lives and consider adopting from shelters.
- World Wildlife Day — Celebrated on 3 March, this UN-recognised day raises awareness about the world’s wild animals and plants.
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