Stories
Brown Capuchin Monkey Economics
That human intelligence is superior in the living world is almost a truism. Great intelligence—and a unique ability to reason, to experience emotion, to communicate using complex language, and to understand and employ symbolism—are the criteria by which humans are set apart from the rest of the Earth’s creatures. By our own admission, we are the world’s greatest thinkers, and profoundly so.
A brown capuchin monkey forages in a palm tree at the Tambopata Research Center in Madre de Dios, Peru
While we do not yet have any direct evidence, astronomers tell us that as many as a million worlds within our own galaxy, the Milky Way, might be inhabited by intelligent life. And with around 400 billion other galaxies sprawled throughout the cosmos, intelligent life is essentially a statistical certainty—a striking and very beautiful proposition indeed. Yet, for the past several hundred years, scientific discoveries have steadily eroded the uniqueness, the exceptionality, and the centrality of the human species and our place in the world. It all started, of course, with the discovery that the sun does not revolve around the Earth—that our humble little planet is but an insignificant blip in a vast universe replete with countless other worlds, with each one precisely, simultaneously, at its center.
Most recently, however, it is the cognitive scientists—those who study the acquisition of knowledge and understanding through thought and experience—that are teaching us that we must rethink the notion of our supremacy and our matchless intellect, right here on Earth. They are doing so not only by teaching sign language to gorillas and chimpanzees—an astonishingly impressive feat on the part of researcher and ape alike, to be sure—but by teaching us how the brains of our more distantly-related cousins, the monkeys, work. As it turns out, those monkey brains work a lot like our own.
The brown capuchin monkey, Cebus apella, is one of several species of capuchins found throughout the Amazon basin, including in Tambopata. The brown capuchin is widely considered among the most intelligent of the New World primates, or the monkeys and tamarins of the American tropics.
Recently, a group of researchers working in a laboratory at Yale University have successfully introduced the concept of currency to their captive brown capuchins. After months of introducing the monkeys to the small, metal disks that would serve as coins, the monkeys learned that they could exchange these coins for highly prized food items such as grapes.
Before long, the monkeys learned how to budget their coins, especially after the researchers introduced another highly-prized food item to the menu: Jell-O. When the price of Jell-O was reduced compared to grapes, monkeys reacted in precisely the way that current laws of economics in humans predict: they bought more Jell-O.
Perhaps the researchers’ most stunning find came after a monkey was observed exchanging money for sex with another monkey. The monkey had learned well the value of money, and most importantly, that it could be used to trade for goods and services—even prostitution!

The facial expressions of brown capuchin monkeys belie their human-like intelligence
You might ask, Why do monkeys have or need such powerful brains—which appear to have many of the high cognitive functions of our own—if they don’t appear to use them in many of the same ways that we do? Why, if they are able to barter for food and even sex in a laboratory setting using a symbolic currency, do we not see monkey towns and cities dotted throughout the rainforests of tropical America, instead of only human towns and cities?
We can’t yet answer the second question, although it is most likely the result of a combination of factors, including a poorly-developed vocal organ that prevents the use of complex language, limited tool use, a lack of bipedalism, or other factors which we do not yet know. But we can fairly confidently answer the first question, Why do monkeys have such powerful brains?
Although monkeys do not typically do math or read or write, they do live in cooperative groups with complex social structures. Large groups provide protection in numbers, and with large snakes, jungle cats, and birds of prey standing (or slithering or flying) at the ready day and night to make a meal of a monkey, group life has its benefits.
Powerful brains..
But living in a group presents other challenges. For instance, a strict social hierarchy, in which dominant animals feed first at an abundant resource such as a fruiting tree, say, allows everyone to access food without a brawl each time food is discovered by the group. But how best to remember one’s place in such a hierarchy? Evidently, a large brain allows monkeys to know and recognize other individual monkeys, as well as their own and others’ social statuses.
They also use their powerful brains, just as we do, to analyze the feelings and intentions of others, which is done with the help of a large amount of computing power. As we all know, social life and in-group politics are complex, and powerful brains have given primates the tools they need to survive and reproduce in large social groups.
This explanation makes evolutionary sense for humans, as well. Those individuals with more highly-developed brains—which should, on average, make them more competitive in a group setting—should again, on average, reproduce more. Their offspring, in turn, will have bigger, more powerful brains, and so on, until, after many generations, intelligence on the order of that of humans has evolved from our more humbly intelligent ancestors.

It is beautiful to consider that we share an evolutionary kinship with these amazing, inquisitive, and crafty creatures. The capuchin’s sharp intellectual abilities provide evidence of that kinship.
Discoveries in the cognition of non-human primates—like the brown capuchin monkeys of Tambopata—continue to shatter the notions of total human uniqueness and our superiority over the rest of the Earth’s lifeforms. But, instead of viewing this as a demotion, I argue that such amazing discoveries are causing to celebrate. To celebrate the emerging knowledge that we are part of a complex yet beautiful creation in which all creatures share in the history and a future more interconnected and fascinating than we’ve ever before imagined—even if some of our shared characteristics might seem a bit unsavory.
There remains so much more to learn about human and non-human primate cognition. But one thing is already certain: monkeys are smart, and they use their brains in many of the same ways that we do, often to achieve similar or identical ends. In reality, this should not come as a surprise—on the grand evolutionary tree of life, we are very close relatives. But monkey prostitution? I don’t think anybody expected that!
And as usual, sign up for your free trial of the Amazon cam here and help us identify the Amazon wildlife that is on the photos taken by our 20 square kilometer grid of 78 cameras snapping away in the middle of the Amazon jungle. You can start practicing photo identification with our free illustrated plates of 172 Amazon Rainforest Animals
by Geoff Gallice
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What our guest say
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- Valuation Excellent
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Fantastic to be deep in the forest surrounded by incredible wildlife with our amazing guide Juan Carlos Yatto, who really knew his stuff! Also his photography skills meant that we could share our experience even better through his telescope using our phone cameras! We learned so much!! He went to extra lengths to find butterflies and moths for us along with so many different birds and monkeys. This was a travel highlight for us as experienced wildlife travellers. We loved our spacious room with no windows and open to more wildlife visitors but after 5 nights the bed could have been a little more comfortable. Luckily we had a second bed to use. Otherwise it was fantastic with hot water showers and fresh drinking water all the time. We were amazed at the variety of food on offer for breakfast, lunch and dinner and couldn’t believe they could have such a wonderful food offering in such a remote location. Even the wine and cocktails were great. I highly recommend spending the extra money and time getting to this location. We stayed at another lodge later which was closer to Puerto Maldonado and there was far less wildlife. Read all
Ederson made the stay at the lodge amazing. I have had many guides around the world and Ederson may be the best I have had across 50 countries. The lodge itself is nice, and has electricity. Food is good, and you really feel immersed in the amazon staying there. Its great that a portion of the money goes back to conservation and research. Noteworthy details: Ederson, the "commander" is the best guide! Read all
Through a travel agency in Lima we booked a 4day/3-night stay at Refugio Amazonas. We were looking for a lodge that was far away from Puerto Maldonado but didn't require almost a day to get there (like TRC), with extensive walking trails and with the principal jungle highlights nearby. We were not disappointed. As we later learned, this is probably the best lodge in the region! Well run, quiet, excellent food, beautifully located in the middle of the forest, everything was "right". Surprisingly there were few mosquitos or bugs. Emperatriz (MP as some call her), our guide, has a keen eye and took us on some unforgettable walks and boat rides, both day and night. The birds at the clay lick were fantastic. The lodge also had evening lectures by young researchers as well as special activities such as collecting night moths and setting a trap camera. We later received videos and photo's of what was found (including a puma!). I can recommend this lodge without reservation. Read all
Abbiamo scelto il Tambopata Research Center perché il nostro obbiettivo era di poter vedere le are da vicino. Ci siamo stati ad inizio dicembre scorso, l'inizio della stagione delle piogge, perciò abbiamo scelto di restare 5 notti/6 giorni, abbiamo messo in conto di perdere delle giornate a causa della pioggia e per la lontananza da Puerto Maldonado, per nostra fortuna durante il nostro soggiorno ha piovuto solo il giorno di partenza proprio quando arrivavamo in aeroporto. Non c'é stato un giorno che non ne abbiamo visto: are di diverse specie e colori e molti altri uccelli e primati, spettacolare l'incontro a pochi centimetri con un formichiere bianco, ma non il giaguaro. Consigliamo di pernottatre almeno 3 notti, il viaggio é molto lungo. Noi eravamo all'aeroporto di Lima già alle 8:00 di mattina e tra un volo in ritardo, uno spostamento in bus di ca. 45 minuti per arrivare al fiume, ed un trasferimento in barca veloce, siamo arrivati al lodge verso le 16:30. All'aeroporto ci ha accolto la nostra guida privata Alfred, che ci ha seguito per tutto il soggiorno, di giorno in giorno abbiamo deciso le escursioni da fare, ed Alfred si é rivelato essere una super guida, un occhio di falco per scoprire anche il più piccolo uccellino, con pazienza é riuscito a farci camminare chilometri nella giungla, ci ha spiegato molto sulla flora e fauna. Bravissimo a far video e foto con i nostri telefoni col suo binocolo e cavalletto che si portava sempre appresso, queste foto sono dei magnifici ricordi. TRC non é un hotel, é un centro di ricerca per le are, in mezzo ad una foresta ed a ore dal primo centro abitato, perciò non avevamo delle grandi aspettative ne sul cibo ne sull'alloggio Read all
This place is a treat!! Incredible flora & fauna, food and service - the staff is quite attentive. Interesting research, with lots of potential. Visiting the Peruvian Amazon Rainforest is a must do! Read all
We had the most amazing time EVER at Refugio Amazonas, and I am so very glad I booked our stay here. Honestly, this is to date probably the best travel experience we have ever had and I will never forget our time in the Amazon here. First of all, the lodge is beautiful. Our room was lovely. The beds were comfy. The bathrooms are large. It is incredible waking up to the sounds of the jungle and falling asleep to the insects at night. We did have some insects in our room, and a rodent, and even a tarantula (non poisonous)! But it was part of the experience. The food was great and they prioritize native and local ingredients. My partner and I are both vegan and they took SUCH good care of us. The food was delicious, and we had ample vegan options every meal. Everything from the first email contacts with Katia to the transfers to the first night info session to the activities-- which I will get to in a second-- was incredible. It is a bit pricey, but everything is included and there is nothing you need to worry about, and it was so worth it. OK now for the best part-- the activities. Holy wow. First of all, we had the best guide EVER-- Juan Carlos. He was amazing. He is a bird expert, knows so much about the animals who live in the rainforest, the insects, the trees, the plant life, it was incredible. He also so clearly cared that everyone in our group had an amazing time. He took so many pictures for us, pointed out so many animals for us, and made sure we all enjoyed every moment. I can’t thank him enough because it made our time here so very special. We went on many activities that were amazing, and we saw so many animals— capybaras, howler monkeys, capuchin monkeys, so many incredible insects, frogs, tarantulas, so many many birds and butterflies. Every activity was amazing but the highlights were the macaw clay lick and the canopy tower. And we were super impressed and happy to hear about their commitment to conservation, protecting the animals, and supporting the native community nearby. There is so much I could say about our stay here but I would recommend a 3 night stay over 2 nights (so you can do more activities), and make sure you read the guides they send via email before you come so you pack correctly and know what to expect and bring--the guide includes everything so that there are no surprises, and we knew exactly what to expect, although our stay exceeded our expectations! I highly, highly recommend staying here, it was magical, it was a once in a life time adventure, and I will never forget it. I also want to shout out the manager of the lodge, I forgot her name, but she was incredible, as well as the service staff at meal times, who were so kind and helpful to point out what was vegan all of the time. I truly hope we can come back some day!! Read all
The lodge was kept very clean, and the staff paid close att to people's needs. It was very easy find activities and the guides were excellent with a genuine intended approach towards sustainability and environment longevity. Read all
A superb stay in a top class Lodge which gave a wonderful insight into the Amazon wildlife. Our guide was Juan Carlos who has incredible knowledge and a lovely sense of humour. The staff in the lodge were so friendly and the meals provided were something to look forward to. A wonderful experience! Read all
I traveled with my mom, who is elderly, and we were a little scared but decided to go for it. Upon arrival, our guide, Christian Herrera, was waiting for us. He was very friendly and had extensive knowledge of the area. The lodge is wonderful, 100% connected to nature. The food is delicious, and everything there is to do near the lodge is incredible. I highly recommend going to the tower at sunset and the macaw clay lick at dawn. Thank you guys for everything, the stay was a dream. Read all
This place totally stole the show! We came to Peru for Machu Picchu, but I think it’s safe to say Refugio Amazonas became the absolute highlight of our trip.It manages to be as luxurious as a stay in the Amazon can be without feeling like too much hand-holding. The rooms don't have windows, which lets you be super close to nature. Sure, that means moths, but it also means drifting off to the peaceful sound of cicadas and waking up to howler monkeys. I honestly can't remember the last time I had such deep, peaceful sleep.The food is another major plus; it's exceptionally fresh, especially considering it’s a buffet. You should absolutely check out their menu, too—it’s one of the most thoughtful and best-designed ones I’ve ever seen. Kevin hosted us at dinner most nights, and he was such great company and so mindful of my wife's dietary restrictions. It really adds to the experience when you feel that people genuinely care.We also took advantage of the exceptional massage here. After a long trip, a massage by Kelly was exactly what the doctor ordered.But the real star of the show is the activities and the guides. We got incredibly lucky with the very best: Juan Carlos. He was funny, great company, and extraordinarily knowledgeable. All the guides at Refugio Amazonas understand that it's not about just ticking a box but about living the experience. That’s why you might take 30 minutes longer to complete a hike—because you decided to spend some time watching Tamarins playing with each other. Jonathan was another guide we had a wonderful, very knowledgeable, and fun time with. We honestly just didn't want to leave and wish we could have stayed longer. Read all
We just finished three weeks in Peru and without a doubt Refugio Amazonas lodge was a real highlight of the trip. You need to know there is NO AC but honestly you don't need it at night in October, There's a ceiling fan and the bed was super comfortable with netting and additional fan within the bed area. The sounds of the jungle at night and Howler monkeys in the morning was great experience. The staff was excellent with a special mention for Paul our guide. He is an excellent Birder as well and can't thank him enough for over 110 new bird species during our four days there. The early morning Macaw clay lick experience with the boat ride in the dark was very cool. The buffet style meals were ok, make sure you bring shoes for mud and extra to walk around with in the lodge. Refugio provides boots for water on trails. See photos Read all
This place totally stole the show! We came to Peru for Machu Picchu, but I think it’s safe to say Refugio Amazonas became the absolute highlight of our trip.It manages to be as luxurious as a stay in the Amazon can be without feeling like too much hand-holding. The rooms don't have windows, which lets you be super close to nature. Sure, that means moths, but it also means drifting off to the peaceful sound of cicadas and waking up to howler monkeys. I honestly can't remember the last time I had such deep, peaceful sleep.The food is another major plus; it's exceptionally fresh, especially considering it’s a buffet. You should absolutely check out their menu, too—it’s one of the most thoughtful and best-designed ones I’ve ever seen. Kevin hosted us at dinner most nights, and he was such great company and so mindful of my wife's dietary restrictions. It really adds to the experience when you feel that people genuinely care.We also took advantage of the exceptional massage here. After a long trip, a massage by Kelly was exactly what the doctor ordered.But the real star of the show is the activities and the guides. We got incredibly lucky with the very best: Juan Carlos. He was funny, great company, and extraordinarily knowledgeable. All the guides at Refugio Amazonas understand that it's not about just ticking a box but about living the experience. That’s why you might take 30 minutes longer to complete a hike—because you decided to spend some time watching Tamarins playing with each other. Jonathan was another guide we had a wonderful, very knowledgeable, and fun time with. We honestly just didn't want to leave and wish we could have stayed longer. Nearby activities: We did the macaw clay lick, mammal clay lick, night walk, medicinal trail, canopy walk twice, and the oxbow lake. Safety: As safe as you can be in the Amazon rainforest Food & drinks: Excellent varied buffet lunches and dinners every day. Read all
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