Maria Guimarães

Interview

Christiane Taubira: An Amazonian with global reach

After serving as a member of parliament and minister in France, the French-Guyanese economist is preparing to contribute to COP30 with a study on the diversity of local populations

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interview

Suzana Nunes: Female chemical engineer lives in Saudi Arabia

Brazilian scientist develops membranes that act as sophisticated filters, while also working on the permeability of science across genders and countries

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ARCHAEOLOGY

The Amazon’s ancient cornfields

Archaeological sites in Bolivia reveal traces of large-scale corn farming that once sustained a dense human population—and may have even played a role in domesticating ducks

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INTERVIEW

Ivo Karmann: Geologist of the void

In good humor and with a strong team spirit, researcher tells of the beginnings and evolution of scientific investigations into caves in Brazil

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CHRONOBIOLOGY

Biological clock of cyanobacteria, which live for one day, predicts the arrival of winter

Result surprises scientists, leading them to rethink the mechanisms and evolutionary importance of adjusting to natural rhythms

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ZOOLOGY

Temperature affects sensory system development in trout

Temperature affects sensory system development in trout

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Environment

Belo Monte Dam and drought cause the Volta Grande do Xingu region to dry up

Monitoring indicates that low water flow is preventing fish from reproducing and impeding the way of life of Indigenous people and riverside communities

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Interview

Antoinette WinklerPrins: From the Amazon to research funding

Deputy division director of the US National Science Foundation was in São Paulo to discuss potential collaborations with Brazilians

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Climate change

Bacteria in Amazon tree trunks are capable of absorbing methane

Study by international group indicates that the phenomenon occurs in non-flooded areas

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PHYSIOLOGY

When soccer meets science

Research on recent World Cups begins to bridge the gap between sports and science

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Cover

Travel itinerary

The Tumucumaque Mountains National Park (PNMT) is isolated from urban areas, leaving the forest unaltered by human activity

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ARCHAEOGENETICS

Did diseases kill the Neanderthals?

Sequences detected in the genome of the extinct species represent the oldest documented human viral infections

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Interview

Eliza Freire: Lizards, snakes, and prejudice

In spaces once occupied exclusively by men, Eliza Freire identified new species and uncovered new knowledge of the diversity of reptiles in Northeast Brazil

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Zoology

The explosive evolution of snakes

A combination of genetic, ecological, and morphological data reveals the secrets of success behind these legless reptiles

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Zoology

Wildcats from the Andes and Central America differ to those found in Brazil

Complex that includes Leopardus tigrinus and L. guttulus gains new species, L. pardinoides, all in danger of extinction

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Cover

Travel itinerary

The Tumucumaque Mountains National Park (PNMT) is isolated from urban areas, leaving the forest unaltered by human activity

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Cover

Amazonian Giants

Expedition investigates the scientific enigma of 80-meter-tall trees in Amapá

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Ethology

Communication and diet different in urban primates

Pied tamarins in Manaus use smell to complement vocalizations, while howler monkeys in Rio Grande do Sul add barbecue to their vegetarian diet

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Zoology

Guide to Amazon snakes launched at the Butantan Institute

Illustrated panels provide information and teach visitors how to recognize 160 species that inhabit the biome

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Ecology

Parasites that turn spiders into zombies

Infected by fungi, invertebrates climb higher to die

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INTERVIEW

David MacMillan: A catalyst for discoveries

Chemist won the Nobel Prize in 2021 for important innovations in the pharmaceutical industry

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EPIDEMIOLOGY

Brazilian spotted fever not a threat

Combating the tick-borne disease requires an understanding of its underlying ecology and effective clinical diagnostics

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Cover

The era of whole genome sequencing

New techniques are changing the way genetic material is understood and promising to transform our understanding of diseases, human genetic diversity, food production, and evolutionary processes

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GENOMICS

Primate genetic material could contribute to precision medicine

International project is sequencing the DNA of more than 200 species in pursuit of tools to predict human propensity to diseases

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INTERVIEW

Marta Maria Azevedo: In defense of native peoples

Brazilian demographer and anthropologist Marta Azevedo pioneered in identifying the phenomenon of population recovery among Brazil’s indigenous peoples

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SCIENCE COMMUNICATION

Ig Nobel Prize for constipated scorpions

Satire of the biggest scientific award in the world selects the work of a pair from the University of São Paulo in the Biology category

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INTERVIEW

Marta Maria Azevedo: In defense of native peoples

Brazilian demographer and anthropologist Marta Azevedo was a pioneer in identifying the phenomenon of population recovery among Brazil's Indigenous peoples

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INTERVIEW

Carlos Roberto Ferreira Brandão: Living with ants

Biologist surveyed species in the Cerrado, the Atlantic Forest, and the Caatinga, as well as managing museums

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PROFILE

Amazonian challenges

Ecologist broadened her study of birds to the entire rainforest, moving beyond research alone to dedicate herself to environmental policy

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Obituary

Two lives dedicated to biodiversity

Thomas Lovejoy and Edward Wilson are unforgettable benchmarks with respect to the importance of nature and conservation

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