logo
Q&A: How anacondas, chickens, and locals may be able to coexist in the Amazon

Q&A: How anacondas, chickens, and locals may be able to coexist in the Amazon

Yahoo16-06-2025
South America's lush Amazon region is a biodiversity hotspot, which means that every living thing must find a way to co-exist. Even some of the most feared snakes on the planet–anacondas. In a paper published June 16 in the journal Frontiers in Amphibian and Reptile Science, conservation biologists Beatriz Cosendey and Juarez Carlos Brito Pezzuti from the Federal University of Pará's Center for Amazonian Studies in Brazil, analyze the key points behind the interactions between humans and the local anaconda populations.
Ahead of the paper's publication, the team at Frontiers conducted this wide-ranging Q&A with Conesday. It has not been altered.
Frontiers: What inspired you to become a researcher?
Beatriz Cosendey: As a child, I was fascinated by reports and documentaries about field research and often wondered what it took to be there and what kind of knowledge was being produced. Later, as an ecologist, I felt the need for approaches that better connected scientific research with real-world contexts. I became especially interested in perspectives that viewed humans not as separate from nature, but as part of ecological systems. This led me to explore integrative methods that incorporate local and traditional knowledge, aiming to make research more relevant and accessible to the communities involved.
F: Can you tell us about the research you're currently working on?
BC: My research focuses on ethnobiology, an interdisciplinary field intersecting ecology, conservation, and traditional knowledge. We investigate not only the biodiversity of an area but also the relationship local communities have with surrounding species, providing a better understanding of local dynamics and areas needing special attention for conservation. After all, no one knows a place better than those who have lived there for generations. This deep familiarity allows for early detection of changes or environmental shifts. Additionally, developing a collaborative project with residents generates greater engagement, as they recognize themselves as active contributors; and collective participation is essential for effective conservation.
F: Could you tell us about one of the legends surrounding anacondas?
BC: One of the greatest myths is about the Great Snake—a huge snake that is said to inhabit the Amazon River and sleep beneath the town. According to the dwellers, the Great Snake is an anaconda that has grown too large; its movements can shake the river's waters, and its eyes look like fire in the darkness of night. People say anacondas can grow so big that they can swallow large animals—including humans or cattle—without difficulty.
F: What could be the reasons why the traditional role of anacondas as a spiritual and mythological entity has changed? Do you think the fact that fewer anacondas have been seen in recent years contributes to their diminished importance as an mythological entity?
BC: Not exactly. I believe the two are related, but not in a direct way. The mythology still exists, but among Aritapera dwellers, there's a more practical, everyday concern—mainly the fear of losing their chickens. As a result, anacondas have come to be seen as stealthy thieves. These traits are mostly associated with smaller individuals (up to around 2–2.5 meters), while the larger ones—which may still carry the symbolic weight of the 'Great Snake'—tend to retreat to more sheltered areas; because of the presence of houses, motorized boats, and general noise, they are now seen much less frequently.
F: Can you share some of the quotes you've collected in interviews that show the attitude of community members towards anacondas? How do chickens come into play?
BC: When talking about anacondas, one thing always comes up: chickens. 'Chicken is her [the anaconda's] favorite dish. If one clucks, she comes,' said one dweller. This kind of remark helps explain why the conflict is often framed in economic terms. During the interviews and conversations with local dwellers, many emphasized the financial impact of losing their animals: 'The biggest loss is that they keep taking chicks and chickens…' or 'You raise the chicken—you can't just let it be eaten for free, right?'
For them, it's a loss of investment, especially since corn, which is used as chicken feed, is expensive. As one person put it: 'We spend time feeding and raising the birds, and then the snake comes and takes them.' One dweller shared that, in an attempt to prevent another loss, he killed the anaconda and removed the last chicken it had swallowed from its belly—'it was still fresh,' he said—and used it for his meal, cooking the chicken for lunch so it wouldn't go to waste.
Some interviewees reported that they had to rebuild their chicken coops and pigsties because too many anacondas were getting in. Participants would point out where the anaconda had entered and explained that they came in through gaps or cracks but couldn't get out afterwards because they 'tufavam' — a local term referring to the snake's body swelling after ingesting prey.
We saw chicken coops made with mesh, with nylon, some that worked and some that didn't. Guided by the locals' insights, we concluded that the best solution to compensate for the gaps between the wooden slats is to line the coop with a fine nylon mesh (to block smaller animals), and on the outside, a layer of wire mesh, which protects the inner mesh and prevents the entry of larger animals.
F: Are there any common misconceptions about this area of research? How would you address them?
BC: Yes, very much. Although ethnobiology is an old science, it's still underexplored and often misunderstood. In some fields, there are ongoing debates about the robustness and scientific validity of the field and related areas. This is largely because the findings don't always rely only on hard statistical data.
However, like any other scientific field, it follows standardized methodologies, and no result is accepted without proper grounding. What happens is that ethnobiology leans more toward the human sciences, placing human beings and traditional knowledge as key variables within its framework.
To address these misconceptions, I believe it's important to emphasize that ethnobiology produces solid and relevant knowledge—especially in the context of conservation and sustainable development. It offers insights that purely biological approaches might overlook and helps build bridges between science and society.
F: What are some of the areas of research you'd like to see tackled in the years ahead?
BC: I'd like to see more conservation projects that include local communities as active participants rather than as passive observers. Incorporating their voices, perspectives, and needs not only makes initiatives more effective, but also more just. There is also great potential in recognizing and valuing traditional knowledge. Beyond its cultural significance, certain practices—such as the use of natural compounds—could become practical assets for other vulnerable regions. Once properly documented and understood, many of these approaches offer adaptable forms of environmental management and could help inform broader conservation strategies elsewhere.
F: How has open science benefited the reach and impact of your research?
BC: Open science is crucial for making research more accessible. By eliminating access barriers, it facilitates a broader exchange of knowledge—important especially for interdisciplinary research like mine which draws on multiple knowledge systems and gains value when shared widely. For scientific work, it ensures that knowledge reaches a wider audience, including practitioners and policymakers. This openness fosters dialogue across different sectors, making research more inclusive and encouraging greater collaboration among diverse groups.
The Q&A can also be read here.
Orange background

Try Our AI Features

Explore what Daily8 AI can do for you:

Comments

No comments yet...

Related Articles

Yoga, Zumba or HIIT? The best way to exercise, based on your personality type
Yoga, Zumba or HIIT? The best way to exercise, based on your personality type

CNBC

time02-08-2025

  • CNBC

Yoga, Zumba or HIIT? The best way to exercise, based on your personality type

Curating your fitness routine to better match your personality could help you get the most out of your workouts, a new study shows. The paper, published last month in Frontiers in Psychology, shows that certain personality traits may indicate which type of exercises people enjoy and how likely they are to stick with them. "We found that our personality can influence how we engage with exercise, and particularly which forms of exercise we enjoy the most," Flaminia Ronca, one of the study's co-authors and an associate professor at University College London, said in a press release. "It's OK if we don't enjoy a particular session," Ronca said. "We can try something else." Ronca and her fellow researchers recruited 132 adults, and placed them into two groups. One group was told to follow at-home workouts of cycling and strength training, and the other group was asked to follow their usual routines. Participants were given a questionnaire to determine their personality type and stress levels. By the end of the study, a total of 86 participants completed their group's assignment and surveys which asked which workouts they enjoyed the most before and after the experiment began. The paper focused on the Big Five personality traits used in psychology: Here are the workouts that each personality type found the most exciting. People who scored high in extraversion seemed to enjoy high-intensity workouts (HIIT) and team sports. Some exercises that extroverts should try are: Those who got high scores for conscientiousness tended to like goal-oriented exercises. They really enjoyed activities like training for a marathon or joining a run club. Exercises that conscientious people should explore are: People that scored high in neuroticism, or those who often experienced mood swings and anxiety, preferred light, one-on-one workouts. "This group might appreciate being given space for independence and privacy during an exercise program," Ronca said. Anxious people may benefit from having private sessions with a personal trainer or a Pilates instructor, and would likely avoid group classes. People who fall into the group of openness and agreeableness liked fun workouts and looked for variety. Exercises for open-minded and agreeable people to consider are: It is not at all surprising that introverts preferred to work out on their own and in their homes. Some exercises that introverts would likely gravitate towards are:

Bronze Age Humans Got High on Psychoactive Betel Nuts
Bronze Age Humans Got High on Psychoactive Betel Nuts

Gizmodo

time02-08-2025

  • Gizmodo

Bronze Age Humans Got High on Psychoactive Betel Nuts

Long before Ethiopian monks in the 9th century discovered that coffee tree fruit helped them stay awake during evening prayer (according to legend, anyway), communities in Southeast Asia have been chewing betel nuts—the seeds of the areca palm and a stimulant that heightens people's alertness, energy, euphoria, and relaxation—since antiquity. But new research indicates that betel nut chewing has been practiced for even longer. By studying ancient dental plaque from Bronze Age individuals in Thailand, an international team of researchers suggests that people were consuming the stimulant 4,000 years ago. This novel approach paves the way for future investigations of ancient behaviors in the absence of traditional archaeological evidence. 'We identified plant derivatives in dental calculus from a 4,000-year-old burial at Nong Ratchawat, Thailand,' Piyawit Moonkham, an anthropological archaeologist at Chiang Mai University and first author of the study published yesterday in Frontiers in Environmental Archaeology, said in a statement. Dental calculus, also called tartar, is hardened dental plaque. 'This is the earliest direct biomolecular evidence of betel nut use in south-east Asia.' Moonkham and colleagues analyzed 36 dental calculus samples from six individuals from Nong Ratchawat, a Bronze Age archaeological site in central Thailand. The team also produced their own betel liquid samples to investigate the interactions between ingredients and make sure their analysis could accurately detect the psychoactive compounds. 'We used dried betel nut, pink limestone paste, Piper betel leaves, and sometimes Senegalia catechu bark and tobacco. We ground the ingredients with human saliva to replicate authentic chewing conditions,' Moonkham explained. 'Sourcing materials and experimentally 'chewing' betel nuts to create authentic quid samples was both a fun and interesting process.' A betel quid is a chewing mixture consisting of the areca nut and other ingredients, such as those listed above. It's worth mentioning that a heavy use of betel nuts can eventually lead to health risks such as oral cancers and heart disease. Ancient Egyptians Mixed Psychedelics, Bodily Fluids, and Alcohol for Rituals, Scientists Confirm The team's analysis revealed traces of arecoline and arecaidine in three of the samples, all from the same individual—organic compounds present in betel nuts as well as coffee, tea, and tobacco, which can have a significant impact on a person's physiology. In other words, betel chewing has likely existed for at least 4,000 years. 'In essence, we've developed a way to make the invisible visible—revealing behaviors and practices that have been lost to time for 4,000 years,' said Shannon Tushingham, senior author of the study and associate curator of anthropology at the California Academy of Sciences. Furthermore, 'the presence of betel nut compounds in dental calculus does suggest repeated consumption, as these residues become incorporated into mineralized plaque deposits over time through regular exposure.' While consistent betel juice chewing usually stains teeth, the researchers did not identify any such staining. They suggest that this could be due to different consumption methods, ancient teeth cleaning practices, or processes that prevented the stains from lasting over 4,000 years. They also didn't find any evidence indicating that the individual's burial was special compared to the others—evidence that, presumably, might have provided insight into why the individual consumed betel nuts. 'Psychoactive, medicinal, and ceremonial plants are often dismissed as drugs, but they represent millennia of cultural knowledge, spiritual practice, and community identity,' Moonkham concluded. 'Archaeological evidence can inform contemporary discussions by honoring the deep cultural heritage behind these practices.'

4,000-year-old teeth reveal the earliest use of this psychoactive substance
4,000-year-old teeth reveal the earliest use of this psychoactive substance

CNN

time31-07-2025

  • CNN

4,000-year-old teeth reveal the earliest use of this psychoactive substance

For the first time, archaeologists have used advanced scientific techniques on 4,000-year-old dental plaque to confirm traces of betel nut chewing in ancient Thai communities. Betel nuts are usually chewed as 'quids,' a mix of slaked lime and ground betel nuts—which contain psychoactive compounds that boost energy, alertness, euphoria, and relaxation—wrapped in a betel leaf. The stimulant, which can leave a red, brown or black stain on the teeth, is thought to be the world's fourth most commonly used psychoactive substance, after caffeine, alcohol, and nicotine, with hundreds of millions of users globally. In the past, betel nuts have been identified at archaeological sites via plant fragments or stained teeth, offering circumstantial evidence that its use goes back at least 8,000 years. But using advanced scientific techniques, an international team of researchers has identified betel nut chewing in an individual with no dental discoloration. The study, published Thursday in Frontiers in Environmental Archaeology, provides the earliest direct biochemical proof of betel nut consumption in Southeast Asia, predating previous evidence by at least 1,000 years, said author Piyawit Moonkham, an archaeologist at Chiang Mai University in Thailand. The discovery of 'invisible' traces of betel nut chewing in the molars demonstrates that for some prehistoric practices, 'the visible evidence that we have might not tell us the whole story,' Moonkham said. Highly sensitive and minimally invasive, the method requires only tiny samples of plaque and offers a 'fascinating' way of finding more clues about the past, said Thanik Lertcharnrit, an associate professor at Silpakorn University in Bangkok, Thailand, and an expert in Southeast Asian archaeology, who was not involved in the study. 'In terms of methodology, we have very few, if any, archaeologists using that kind of scientific technique, the residue analysis, to infer the life, the tradition, the culture of the (prehistoric) people,' said Lertcharnrit. 'This paper represents a pioneer; it's state of the art in terms of archaeological research in mainland South Asia, particularly in Thailand.' Researchers began collecting ancient dental plaque, known as calculus, from Nong Ratchawat, a Neolithic burial site in central Thailand, in 2021. The team removed tiny, five-milligram scrapes of plaque from 36 dental samples, taken from six individuals. The method, called liquid chromatography-mass spectrometry (LC-MS), extracts, separates, and identifies chemical compounds by measuring how heavy the molecule is compared with its electrical charge. But before testing the ancient samples, the team needed a control sample — something they could compare the results with and demonstrate what traces of betel nut liquid might look like. 'We tried to mimic the culture of chewing,' said Moonkham, adding that in addition to the core ingredients of dried betel nut, red limestone paste, and piper betel leaves, they included catechu bark and tobacco in some of their control samples, and ground the ingredients together with human saliva. The modern control samples were tested first to validate the method before the dental samples were analyzed. They detected trace plant alkaloids – including betel nut's main psychoactive compounds, arecoline and arecaidine – in three samples from one individual known as 'Burial 11,' likely a woman aged around 25. Researchers say the benefit of the technique is that it doesn't destroy the original samples, leaving the remains intact for future study. LC-MS is currently used in a variety of fields, including pharmaceuticals, food safety, and environmental testing. But its use in archaeology so far has been limited, said Dr. Melandri Vlok, bioarchaeologist and a lecturer in anatomy and physiology at Charles Sturt University in Australia. 'A lot of the work that's been done using this (method) is looking for proteins in dental calculus for dietary reasons. So, using it to pick up these compounds that get trapped in the dental plaque, that's what's really innovative here. Nobody has done this before,' said Vlok. There's a reason it isn't common: the method requires expensive machinery—such as an Orbitrap, one of the most advanced mass spectrometers on the market, which identifies molecules by measuring the mass-to-charge ratio—that many researchers don't have access to, she added. 'It's starting to be used more routinely by some of the bigger labs, like Harvard and Max Planck — which makes this research even more amazing, because this is a paper with a Thai first-author, which is great,' she said. 'Seeing this research come from within the region is actually the thing that excites me the most.' The team on this paper included researchers from eight institutions across three continents, and the chemical residue analysis was conducted at Washington State University, where Moonkham studied for his PhD. The study's control samples, which created a 'standard' to test against, are another novelty, and future studies could refine this even further by considering how the compounds degrade over thousands of years, said Vlok. 'This is a method that I can definitely see being used quite frequently from now on in the region,' she added. While betel nuts have long been linked to hospitality and religious rituals, much of the research in recent years has focused on its classification as a carcinogen and the correlation between betel quid use and oral cancers. 'Betel nut chewing has significant implications for people's health,' said Vlok. 'It's something that affects millions of people in tropical Asia-Pacific today, but we don't really know how long people have been doing this for.' Better understanding where the tradition comes from, and how and why people are using it, could help address some of these concerns, she added. In Thailand, Moonkham says the practice has been strongly discouraged by the government since the 1940s, and while it's still popular in rural areas, it's now uncommon in cities and with younger generations. Although he recognizes the potential health hazards, Moonkham believes the practice has been overly 'demonized' and hopes research like this can show the long history of betel nuts in Thailand, and their importance in society. He has a personal attachment to the practice, too: he has childhood memories of his grandparents often chewing betel quids, usually while gossiping with friends or relaxing after a family meal. 'I asked my grandmother once, 'Why do you chew it?' And she responded, because it cleans the teeth and it helps me relax,' Moonkham recalled. 'When she chewed it, she tended to share with a friend, family, or colleagues. I think it's significant in the way it creates a social bond.' Researchers are still exploring possible reasons for the absence of tooth stains in the individual they examined, which they speculate could be due to different chewing methods, cleaning habits, or decay over the thousands of years since. Further research could help narrow down the possibilities. The team plans to analyze more individuals from the Nong Ratchawat site, where a further 150 individuals could be tested for signs of betel nut use, and Moonkham intends to dig deeper into the social, religious and medicinal roles of betel nut in ancient societies in future projects. The technique could also be applied to a wide range of plant and food residues, opening new avenues for understanding ancient practices. 'I think people tend to neglect the social and cultural aspect of plants,' said Moonkham. 'It's important to understand the whole perspective.'

DOWNLOAD THE APP

Get Started Now: Download the App

Ready to dive into a world of global content with local flavor? Download Daily8 app today from your preferred app store and start exploring.
app-storeplay-store