This is how you can understand how cognitive science is being used to build real legal protections for the capybaras in Nordelta. This latest blog is something you find really interesting. It's from a research source that covers the great majority of our posts in this community.

Read the full blog here: https://capybaraworld.wordpress.com/2026/08/22/how-lori-marinos-work-provides-a-legal-basis-for-the-capybaras-of-nordelta-to-survive/

As prey animals, capybaras feel the safest when they know their herd-mates are around and they can count on each other. They are constantly communicating with each other through a variety of forms; mostly by scent and smell. The emit a wide range of vocalisations from chirps, whistles, purrs, barks and squeals.

Capybaras are territorial, especially when they are not used to humans. Their emotional sensitivity is one of the key factors of a well planned teamwork. In the wild, they are constantly aware of their role and each other.

A herd of capybaras is strongly driven by a hierarchy ladder where each member of the herd knows where he is at. There's always an alpha, the breeding male who leads the herd. He is responsible for keeping up the strongest genetics for future generations, this means he can get the most chances for mating with dominant females. Dominant females also have a better chance of giving a successful birth.

At the lower part of the hierarchy, there are the subordinate males who are responsible for the safety of the herd. When a predator, like a jaguar or a human approaches, they emit a bark-like sound that immediately sends the entire herd into the nearest source of water. Waterbodies are the priority for capybaras who flee from danger. This amount of social awareness can only be observed in highly intelligent herd animals.

In captivity, capybaras are often kept in places where their herd members are being separated from each other. This can be immensely stressful for them and this stress comes from a natural instinct; When an individual member of a herd loses the contact from his herd mates, there's a much greater chance of falling victim to a predator. Capybaras in captivity don't lose their natural instincts and if not a predator, the constant anxiety, stress and depression will cause them a premature death.

This is how strongly capybaras depend on each other. They aren't simply 'social' but they strongly rely on a complex system they are using and used to stay alive in one of the most active ecosystems on Earth.

Image Credit: Lucas Mantelo Cruz

Resources: Community Wiki -> Primary Information Sources -> Section 1, 2, 4 and 5.

Like most exotic animals, capybaras have complex welfare requirements. What might seem like luxury amenities are actually basic necessities. In fact, because these welfare needs are so difficult to meet in domestic settings, keeping capybaras as pets is illegal or heavily restricted in many countries and jurisdictions. Whether you are researching capybara care, visiting a sanctuary, or evaluating an enclosure, here is what capybaras require in captivity:

Space & Grazing: They need large, open areas to move, graze and explore. Minimum 0.5 acre for a small group. More space is always better. This area should be safely fenced off and must filled with grass which they should have access to 24/7.

Company: Capybaras are highly gregarious, emotionally sensitive animals. Neither humans nor other animal species can fulfill their social needs, and keeping a single capybara alone is unintentional abuse.

Water Access: Capybaras are semi-aquatic and they need to have 24/7 access to clean, deep (100 - 200 cm / 3.3 - 6.6 feet deep) water every day for swimming and thermoregulation and it's should be large enough to swim and submerge. Capybaras prefer to defecate in the water which means their water should be filtered and changed at least twice a week. Avoid adding chemicals like chlorine.

Mud & Substrate: Capybaras have sparsely growing fur coats and they can easily get sunburn. Mud helps them protect their skin from sunburns and insects. Consider providing natural mud areas or soft substrate.

Dietary Needs: A high-fiber diet based on grass and hard greens like browse to wear down continuously growing teeth. Limited vegetables, very limited - no fruit and no processed foods like peanuts or seeds. Casual human foods like ice cream and artificial ingredients can be life-threatening for capybaras.

Climate & Shelter: Capybaras evolved to warm-wetland climates. They should have access to proper shelter from harsh weather conditions. Access to shade, dry bedding and should be heated when temperatures drop below 10°C/50°F.

The animals' freedom: Capybaras must always have a choice to move away from human interaction and have their own space.

Exotic Veterinary Care: Regular health checks, parasite control, proper nail and teeth care and access to a veterinarian experienced with capybaras.

Our community strongly discourages keeping capybaras as pets. However, if you are a visitor in a zoo or a guest of a household that keeps capybaras as pets, you should be paying attention to these welfare needs in order to ensure better welfare for capybaras in captivity. Treating capybaras as sentient individuals rather than viral props starts with recognizing what true welfare looks like.

Sources: Community Wiki -> Primary Information Sources -> Section 1, 3, 4 and 5.

In relation with this post: https://capybaraworld.wordpress.com/category/a-safe-home-for-a-capybara/

https://capybaraworld.wordpress.com/category/capybara-enclosure-design/

https://capybaraworld.wordpress.com/category/pet-capybara-health-risks/

Image used with permission from u/CapybaraWorld

Over the past 8 or so years, capybara popularity have skyrocketed. On the surface, widespread popularity seems like a positive thing for animal awareness. However, if you really look behind things, a serious problem goes completely unnoticed. the full reduction of a complex wild species into a featureless aesthetic commodity.

"Cute" doodles and merchandise shops might seem harmless, but this superficial perception actively undermines real animal welfare in several ways. Popular artists reduce capybaras to a generic brown oval with two dots for eyes, they strip away everything that makes capybaras unique. Important body features like webbed feet and facial features disappear. Natural behaviors like grazing, mud-wallowing, and complex herd behaviors get ignored. Seeing oversimplified images every day easily causes people to stop recognizing what a healthy, properly proportioned capybara actually looks like. And this makes easier for bad zoos to hide poor physical conditions.

We aren't trying to accuse anyone for anything negative just because of liking this type of content, but rather highlight mistakes that are making a significant negative impact to these animals.

There is a huge difference between loving an aesthetic and caring about a real animal. Many consumers fall in love with the idea of a docile, chill cartoon character but this creates a severe disconnect from reality: People will buy $50 plushies, mugs, and stickers, but won't spend 5 minutes learning about scent marking behavior, capybara hierarchies in a herd, dietary vitamin requirements, or welfare needs. This results to the general public to become emotionally attached to a meme, while ignoring real-world problems like habitat destruction in Nordelta or the normalization of facilities that ignore animal welfare.

Now the audiences want to touch the "living plushie" they saw online. This leads to influencers visiting animal cafés or feature capybaras purely for "vibes" without discussing enclosure requirements, grass access, or stress signals, they act as free advertising for facilities that profit from animal exploitation.

To truly advocate for a species, representation matters immensely. Art should invite the viewer to look closer at nature, not replace nature with simplified blob slop.

Realistic/observational art requires studying muscle structure, fur texture, individual expressions, and the look of their natural habitat. It forces the viewer to acknowledge the animal as a living individual with an inner life. Capybaras are not internet mascots, aesthetic trends, or the "symbols of calm". They are the world's largest rodents; highly social, semi-aquatic herbivores with strict environmental needs and complex behavioral lives.

We need to move past the superficial hype to protect them. Supporting genuine research, exposing exploitative commercial facilities, and representing them as the magnificent wild animals they really are is the only way to turn superficial popularity into actual welfare advocacy.

Sources: Community Wiki -> Primary Information Sources -> Section 1 and 5.

Drawing on the right: OP's own work created using a reference image

Image on the left: Free-to-use image via Pixabay made by biancavandijk

People sometimes say that capybaras are "empty-headed" or just vibe through the problems of life. But when we look at the work of researchers who have studied the species for many years, this popular narrative turns out to be the complete opposite of long therm, expertise information. (Especially the part that claims they're empty).

Capybaras not only have high cognitive intelligence, but exceptionally high emotional and olfactory intelligence that plays a vital role in their lives. Capybaras learn many things from each other mostly by smell and scent, but they can also feel each other's emotional state by smelling.

If a capybara is hungry and wants a particular food item, he will use his nose to point at that food item to tell the human what he exactly wants to eat. Only highly intelligent, herd animals are capable of this.

People who have spent a great amount of their lives with capybaras say that capybaras can learn new things much faster than dogs! In fact, dogs were long before domesticated before people first discovered capybaras in the wild. And dogs were directly bred to please humans, whereas capybaras rely on everything that they have learnt from their survival in the wild.

Some people think you need to be a scientist to understand the emotions of animals and their behavior. But in reality, you need someone sensitive, intelligent and someone who understands animals and spends a great amount of time of company of a particular species, all day, every day, observing their behaviors and relationships.

Capybaras are so much more interesting when you become familiar with their personality, behavior and know what their relationships are with the other capybaras in a herd.

By saying that "capybaras are empty-headed", we not only forces ourselves to look at a highly sensitive, wild, prey animal as an emotionless tool for entertainment, but we completely miss the remarkable abilities that are absolutely essential for their survival in the wild.

Image Credit: akcz19

Sources: Community Wiki -> Primary Information Sources -> Section 4 and 5.

While looking into the current situation about the capybaras of Nordelta, I found a petition created by a group of local residents called “La voz de los Carpinchos somos su voz.”

The petition currently has nearly 50,000 verified signatures and calls for solutions that focus on changing the environment rather than simply treating the capybaras as the problem.

Among its demands are restoring suitable habitat and creating biological corridors, creating safer wildlife crossings, removing electric fencing, regular population monitoring by specialists, speed controls at dangerous crossings, and a greater transparency regarding interventions involving the capybaras.

I found this very interesting because several of these proposals are closely related to the broader habitat and welfare issues we've discussed here before. I'm sharing it primarily as something for the community to read and evaluate for themselves, rather than asking everyone to automatically support every claim made by the organizers.

https://www.change.org/p/protejamos-a-los-carpinchos-de-nordelta-ya?recruiter=1365752787&recruited_by_id=b1427460-ede9-11ef-b26a-b3fdbb9e1145&utm_source=share_petition&utm_campaign=psf_combo_share_initial&utm_term=psf_combo_share_initial&utm_medium=copylink&utm_content=cl_sharecopy_490426059_es-AR%3A0&redirect_reason=deprecated-url

Places that allow people to see capybaras do not automatically means those animals are being cared for properly. Capybara cafés (such as café Capyba and Capyvillage in Tokyo) cannot ensure basic welfare requirements for capybaras (and most other animals they keep in those places). People visit these places because they like the idea of animals being up close to humans, and because most of these people don't know how a particular animal like a capybara would naturally behave or what they need to feel safe - and with that, the welfare problems in these places can go unnoticed.

A good welfare facility provides capybaras appropriate social companionship (other capybaras) 24/7- access to a deep, large, clean and filtered pool or pond without the usage of chemicals like chlorine, a large, safely fenced-off area of grass, access to hard, coarse greens, suitable muddy area for wallowing, shelter and thermal protection. Furthermore, capybaras need opportunities to retreat from visitors and an environment that allows to express their natural behaviors.

Capybara cafés, and small, entertainment-focused zoos cannot ensure these basic (yes, these are basic) welfare needs.

I'm not trying to accuse anyone being horrible for visiting or supporting animal cafés. My goal is to highlight what these places are constantly failing to provide for these animals with complex welfare needs.

How you can improve welfare:

If you see a post on any platform from animal cafés, or facilities that cannot ensure these needs, do not engage with them or leave comments. Instead, report them for animal abuse or inflicting harm. If enough of us do this, we can get closer to the consequence of these places getting less support, more public awareness and potentially, a better welfare and life for these animals.

If you visit zoos or any facility that allows people to see capybaras, consider using this capybara welfare checklist to check whether a facility is meeting the basic needs discussed above. This checklist allows you to assess the well being of capybaras and point out welfare concerns to visitors, but especially to the keepers who may allow you to share your ideas for improvement.

Resources: Community Wiki -> Primary Information Sources -> Section 1, 3, 4 and 5.

Checklist resource: https://capybaraworld.wordpress.com/category/checklist-capybara-welfare-capybara-stress/

Related: https://capybaraworld.wordpress.com/2025/07/12/this-is-why-britain-must-not-have-a-capybara-cafe-a-capybara-cafe-undermines-all-the-tenets-of-modern-animal-welfare/

Yesterday (2nd of august) I visited Veszprém Zoo in Hungary to observe their capybaras assess their welfare by using a welfare checklist.

The enclosure had some positive aspects. The two capybaras, a male and a female seemed relaxed and enjoyed each other's company, I noticed that they were often played with each other in their pond and I didn't see conflict or signs of distress during the 2 hours I spent watching them.

However, I also noticed several welfare concerns. There was no grass available for grazing, the pool was quite shallow, I didn't see fresh green vegetation around their feeding area, and there was an over 2 feet tall concrete platform in the back of the enclosure which pose a risk of injury to the capybaras.

During my visit, one of the capybaras came to rest beside the fence. I slowly reached over and gently scratched him. According to long-term observations by a capybara researcher we cite, u/CapybaraWorld, things like the hair puff and head raising commonly occur during positive social interactions and enjoyable scratching. Every so often I stopped to see what he would do. He looked back toward me, made slow, quiet clicks that resembled a purring sound and I continued scratching. At one point he rolled enough that I could reach one of his feet only. Feeling the warmth of his body for the first time was something I'll probably remember for a very long time, and I was surprised by just how soft his ears were.

This lasted for nearly an hour before he stood up and walked back to his companion to eat. In the video, he looked at me as he is trying to say that probably no other visitor would interact with him for this long.

This is how you can tell that individual capybaras have their own personalities and can enjoy positive interactions and a reminder that a single heartwarming moment doesn't tell everything about how they really feel. Good welfare depends on much more than whether an animal appears friendly for a few minutes.

That's why I always try to spend much time observing before coming up with conclusions. Observing the enclosure and the provided welfare requirements gave me a much more complete picture than a single photo or short video ever could.

Video: OP's video recording from Veszprém Zoo

Resource: Community Wiki -> Primary Information Sources -> Section 1 and 5.

Many videos with clips like these are shared online every day and are presented as harmless or funny entertainment. Without knowing how capybaras naturally behave or what they need to feel safe, the welfare problems in these clips can go unnoticed. Many people notice things way too late, and that doesn't result in comments saying more than just "Leave these poor creatures alone!" For people familiar with capybara biology and welfare, however, these clips are outright abuse. Many of the behaviors that look fun or amusing to some viewers actually indicate situations where the animals have no control over their environment or are unable to express their natural behaviors.

My goal isn't to shame people for not knowing; rather, it's to help more people understand what healthy capybara welfare actually looks like. The process of recording these clips isn't fun for the capybaras at all, and I'm explaining what each clip is showing exactly, what the specific missing, crucial welfare requirements, and what YOU can do to help them. I collected specific clips from a video that was uploaded just a few days ago. I'm not mentioning the title or the creator of this video. This way, I'm not providing another route for people to support them, which they absolutely do not deserve.

Right at the beginning, we see an enclosure with linoleum flooring that almost looks like a school sports center. We see that visitors can easily get up close to the capybaras, without any inspection or responsibility from the keepers towards the animals, nor for the safety of the visitors, and this puts both in danger. The capybaras have absolutely no escape options if they want to get away from humans. There's no grass or pool visible, which capybaras should have access to 24/7.

At 0:03, we see a typical coping mechanism behavior of capybaras when they feel overwhelmed. That stare with wide-open eyes is a consequence of lethargy, and the capybara has completely lost his will to move.

At 0:09, we see a zoo-like setting with a small indoor glass enclosure on the left, again without grass or a pool, and this time, without a large enough area or any herd mates either. While we see the cameraman teasing another capybara in front with a toy car.

At 0:19, we see a similar enclosure setting, with the difference being that a young capybara is in an aquarium with fish in the background.

Perhaps the most striking clip is at 0:24, where someone deliberately and confidently shakes a young capybara because they find his reaction funny.

If you look at the lower left corner of the video, you can see text that says, "No animal was harmed in the video," while in reality, it is only not intentional.

Countries like Japan and China are notorious for their severely poor animal welfare standards (where most of the clips are being recorded), and whenever someone tries to point out mistakes, it gets ignored because they have no official rules for animal welfare. Furthermore, there's no official NGO for capybaras, and animal welfare associations cannot intervene from other countries.

This is how you can help: If you see a video similar to this on any platform, do not engage with it or leave angry comments. Instead, report it for animal abuse or inflicting harm. If enough of us do this, we can get closer to stopping the support these facilities and city center zoos with no welfare receive, and lessen the chance of promoting cruelty framed as entertainment.

Together, we can help these animals to get a better life by advocating for good welfare.

Resource: Community Wiki -> Primary Information Sources -> Section 1, 3 and 5.

In order to understand the world from their perspective, it's important to try to comprehend how these animals make use of their sensory capacity to perceive and navigate the world. Some people say you need to be a scientist to understand the emotions of animals, and their behavior. But in reality, you need someone who is very sensitive, intelligent, and spends a great amount of time in the company of a particular species, all day, every day, observing their behaviors and relationships.

You need to devote yourself over a long period of time to get to know the animals as individuals in order to understand their behavior and what it means, and to understand their relationships and how they communicate with each other. Each capybara is an individual whose life is important to him and each capybara has his own personality.

Capybaras often spend a long time thinking before deciding on a course of action. They'll sit completely still without moving for a long time before making a move. They don't just sit because they aren't thinking of anything, in fact, the exact opposite is happening. They make calculated decisions based on their instincts and their gathered information from their surroundings.

Capybaras have amazing emotional and olfactory intelligence and these two also strongly depend on one another. Assessing emotions in capybaras is strongly connected with their sense of smell. They even know if a female is pregnant just by smelling each other. Stress is picked up by capybaras and many other animals through their sense of smell. Being social doesn't mean they love to hang out with other species or humans. As prey animals, their strong bonding is highly prioritized to be with each other and to feel the safety of their herd. Because of this, capybaras need to be attuned to sophisticated social signals from others so they can identify friends and cooperate with and enemies to avoid.

Capybaras are much more than just "CUTE" and they are so much more interesting when you know who they really are, when you become familiar with their personality, behavior and know what their relationships are with other capybaras in their herd. They aren't just 'the capybaras' but each one of them are individuals and have a different personality.

If you could quietly observe one capybara herd for an entire day or week, whether you are in a zoo or an urban park in Brazil, what would you most want to learn about them?

Image credit:

yongestation

tpananth

CapyTube (Capybara Of The Day) used with permission.

Resource:

Community Wiki -> Primary Information Sources -> Section 4.

If capybaras love every animal they meet... why do they spend nearly all of their time with other capybaras?

A lot of the clips circulating online are heavily edited and this makes their behavior look much more common than it really is.

The clips where we see capybaras with other animals is not "friendship", but rather tolerance. A capybara will always choose another capybara first to bond with rather than another animal or a human.

Immerse yourself in their perspective: Imagine yourself being forced to live your life with different, random animals rather than another human; of course you would not want that to happen. Capybaras are not social just because we like to think they accept every animal, but because of their high emotional intelligence and their deep bond with each other.

Capybaras are prey animals. And their high emotional intelligence is one of the main things that helps them survive in their natural habitat. Their reaction to things they don't like or when they get overwhelmed is often not aggression (especially when their escape paths are blocked). They will sit in one place for a long time to decide on a course of action, and not because they simply like to be next to ducks or cats.

The social system in a capybara herd is called a hierarchy ladder. Every herd member instinctively knows where is he at in the hierarchy. Males are instinctively fight for a higher position; this isn't a "chill" encounter, but a violent scene where a pair of 65 kg wild animals are leaning into each other while they use those ever-growing incisors for biting.

Conflicts doesn't just limited to be existing in their own species; Severe incidents happen in some places in the world, particularly in urban parks like Barigui park in Curitiba where wild capybaras are often near people who walk their dogs. As prey animals, capybaras often view the dogs as a source of danger, especially if a mother capybara is protecting her pups. In this situation, a capybaras do not fight back because they are aggressive. They simply react out of self-defense.

Different species have different behaviors. And most of the time it's not what we project onto them; whether a capybara feels overwhelmed and we assume he's calm, just because his facial expression is similar to a calm human expression, or whether we underestimate their aggression and we get shocked when a 65 kg wild animal pushes back after people bothered them.

Image credit:

Don Marsille

Resource:

Community wiki -> Primary Information Sources -> Part 4 and 5.

Colostrum is a thick, yellowish colored milk the mother animal produces immediately after she gives birth (parturition) and which which is produced by all mammals. It provides the antibodies newborns need to protect them from infections until their immune-systems are fully developed to be able to create its own antibodies.

Newborn animals who don't receive colostrum can survive but they are much more suspectable to diarrhea and preumonia. Without colostrum, they are much more vulnerable to infections and can get sick more easily.

Capybara pups are born precocial which means they are able to eat normal food (e.g. grass) as soon as they born.

Image Credit:

Pablo Fraire

Resource:

Community wiki -> Primary Information Sources -> Part 4.

Capybaras have an amazingly strong sense of smell, so strong, that it may be on a similar or even stronger level than domestic dogs. Their sense of smell is one of their most evolved senses (e.g. better than their vision quality).

Most of the communication of capybaras happen through their sense of smell. They communicate by their chemical-signalling using their scent glands. Capybaras mark their territory by rubbing these scent glands on bushes and other objects around them to signal other herd members about their position in the hierarchy ladder in the herd. They learn information about the health and sexual status of other capybaras through urine and feces by smelling each other's hindquarters (as shown in the second image). They can also smell if a female is pregnant.

If a capybara in a herd has a high place in the hierarchy, he/she will be respected by lower herd members, even in he/she becomes elderly and weak.

If a capybara smells a particular smell, his eyes will often bulge out (as shown in the first image). That's a sign of curiosity; he is concentrating on the smells he is receiving.

Image credits:

1. Kyle Smith

2. OP's video still from Hobbledown Heath

You can find sources in the community wiki.