Science

Zoology

Spines filled with poison

Gland at the end of hairs produces toxic secretion in stinging caterpillars

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Cytology

The hanging gardens of cells

Cultures in 3D environments reveal unknown structures

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ASTRONOMY

Hard and lifeless

The crusts of some rocky exoplanets may be too rigid for them to be habitable

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Physics

The behavior of blackouts

Mathematical models help us understand how successive failures cause blackouts

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Daniel Kleppner

Daniel Kleppner: The continuing strength of atomic physics

Experiments by the American physicist laid the foundation for major discoveries

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ASTRONOMY

The cost of shining so brightly

The emission of particles extracts energy from the Sun’s outermost layer

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Zoology

Retroactive epidemiology

Study of tadpoles preserved identifies fungus responsible for die-off

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Epidemiology

The threat of yellow fever

Yellow fever cases is bringing back the fear of an urban epidemic in Brazil

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Health

Zika in early pregnancy

Zika infections in early pregnancy present the gravest danger to the fetus

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Medicine

Blood holds more clues about cancer

Liquid biopsies are starting to be used to evaluate tumor growth

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ARCHEOECOLOGY

An immense orchard

The impact of pre-Columbian human populations in the Amazon Forest

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physics

Superproperties in 2D

Simulations suggest that new nanostructured materials capable of storing information can be developed

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geomagnetism

Magnetic memories of the Jesuit missions

In ruins located in southern Brazil, geophysicists have recovered information about the Earth’s magnetic field from 350 years ago

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Physics

Irreversible disorder in the world of atoms

International team measures the increase in entropy in carbon nuclei for the first time

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ECOLOGY

The harmful effects of illegal hunting

Banned in Brazil since the 1960s, hunting has reduced the populations of several animal species and increased the risk of environmental imbalance

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PALEONTOLOGY

The golden age of the cynodonts

Species first discovered in Africa, and now in Brazil, lived during the peak of diversity of mammal precursors

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environment

Reefs at the mouth of the Amazon River

The region where the river meets the ocean between the states of Pará and Amapá is home to the northernmost corals along Brazil’s coast

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Geogenomics

Seeking to understand the origin of the forest

In a joint effort to explain the biological diversity of Amazonia and the Atlantic Forest, biologists and geologists have created the new field of geogenomics

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HEALTH

Zika, a collaboration to characterize a syndrome

Interdisciplinary work has confirmed that the Zika virus causes microcephaly and other types of brain damage in perinatally-infected infants

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PHYSICS

Pocket Laboratory

Random laser opens the door for the manufacture of low-cost microchips

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PALEONTOLOGY

Shelter for giants

Paleoburrows in Minas Gerais may have been built by primitive ground sloths

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Zoology

A tree with unusual branches

Genetic analysis reveals unusual kinships between spiny rats

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Neuroscience

The hunting circuits

Pathways in the amygdala control the aggressive behavior of predators

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Virology

Microcephaly in vitro

Zika virus replicates inside neural stem cells, disrupting brain development

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PHYSIOLOGY

Weight across generations

Among rats, tendency towards weight gain can be transmitted to children

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HEALTH

Zika, collaboration to characterize a syndrome

Interdisciplinary work has confirmed that the Zika virus causes microcephaly

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PHYSICS

Quantum demon

A Brazilian group can control the heat generated by atomic nuclei

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FIELD WORK

Scenes from an archeological site

Archeological excavations at an ancient burial site

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MARINE BIOLOGY

Perfect match

Algae were already living in symbiosis with corals 210 million years ago

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ORNITHOLOGY

The birdcage that saves

Saved from extinction, the Alagoas Curassow will be reintroduced into the wild

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