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São Paulo declared a state of emergency in public health on Wednesday (19), in response to the alarming dengue outbreak that plagues the state. The decision, announced by the state secretary of health, Eleuses Paiva, at the Butantan Institute, reflects the seriousness of the situation, with numbers that concern the authorities and the population. Dengue makes more than 100 victims and cases shoot The state of São Paulo concentrates 90% of dengue deaths recorded in the [...]

Brazilian researchers have described the second smallest vertebrate in the world, a frog measuring less than 7 millimeters found in Ubatuba, on the north coast of São Paulo. A species of the same genus had already been located in southern Bahia – and it was even smaller. The article reporting the discovery was published this month in the journal PeerJ. Flea frog Brachycephalus dacnis found in Ubatuba (SP) measures 6.95 millimeters. Image: Lucas Machado Botelho/Projeto [...]

New research has highlighted how the asteroid impact that ended the dinosaurs helped give rise to the mutualistic relationship between ants and fungi, marking an early form of agriculture, long before humans began farming. The asteroid that wiped out the dinosaurs turned ants into “farmers” The mutualistic relationship between ants and fungi arose after an asteroid impact The asteroid impact that killed the dinosaurs 66 million years ago may have led to an extraordinary [...]

Microplastics are now everywhere in the human body. Wherever researchers have looked for them, there they are. The highest concentrations were found in vital organs such as the brain, but also the placenta and the cardiovascular tree. For example, in the brain, the levels of micro- and nanoplastics detected in an average-weight adult brain correspond to the equivalent of a third of a 1.5-liter plastic bottle. This is highlighted by research commissioned by Vera Studio to a group of experts [...]

Microplastics are everywhere, including in humans. Previous work has already shown how particles can enter our bodies in three ways: through ingestion, breathing or absorption through the skin – and, from there, reach other parts of the body. A recent study showed that microplastics can also reach the brain. And the gateway could be the nose. The discovery refutes the idea that the central organ of the nervous system is isolated from the rest of the body and that the blood-brain [...]

Classical theories about Earth's past are well accepted in scientific circles, but they may not be completely correct. A recently published study shows that living beings already existed on the planet 800 million years ago, much earlier than current thinking suggests. The discovery was published in the Proceedings of the National Academy of Sciences of the United States of America (PNAS) and shows that, long before Pangea, Earth already had an impressive diversity of eukaryotic [...]

I received an automatic email from SVB (Brazilian Vegetarian Society) protesting against the title of an article published by the FAPESP (São Paulo State Research Support Foundation) news agency. The text in question is entitled “Vegans consume adequate levels of proteins and essential amino acids, but depend on ultra-processed foods”. I went to read the original to see what it was about. And I agreed with the vegetarians. Let’s start with the complaint. SVB [...]

A study conducted in vineyards in São Miguel Arcanjo, in the interior of the state of São Paulo, concluded that greater vegetation diversity leads to an increase in bird species in agricultural landscapes. This could mean, in addition to greater soil conservation, an increase in production capacity. Birds fulfill ecosystem functions in the environment The region of São Miguel Arcanjo is among the largest producers of grapes, cultivated mainly by small farmers, and [...]

In recent weeks, Brazil has been impacted by the torrential rains that occurred in almost all of Rio Grande do Sul, leading to one of the biggest climate tragedies we know of in our country and certainly the biggest in that state. We wrote an article on the SoU_Ciência Blog, republished in the printed version of Folha de S. Paulo, about how Science can bring understanding and solutions to face climate change, which is already a reality. We know that we will increasingly need Science and [...]